History of Express Services

Service 10e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2005	19 September	Introduced between Bedok Rd (Opp Man Fatt Lam Tp) and Shenton Way (Opp Temasek Twr) during morning peak hours and between Anson Rd (Apex Twr) and Bedok Rd (Man Fatt Lam Tp) during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2009	23 February	Serves additional bus stop outside Suntec City along Nicoll Highway.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 12e

Operator	Year	Date	Service changes
Template:Go-Ahead Singapore (Current)	2018	28 January	Introduced between Pasir Ris Int and New Bridge Rd Ter, operating daily. Wheelchair-accessible at launch.
		10 March	Extended to Kg Bahru Ter with the closure of New Bridge Rd Ter.
	2019	27 January	Serves a pair of additional bus stops outside and opposite Eastern Lagoon II along Bedok South Ave 1, an additional bus stop outside Bugis Stn Exit D along Rochor Rd and 2 additional bus stops outside Golden Landmark and outside Duo Residences along Ophir Rd.
	2020	9 February	Revised to operate in the mornings and afternoons (towards Kampong Bahru) and afternoons and evenings (towards Pasir Ris) daily.
		15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 14e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2005	12 December	Introduced between Bedok North Ave 3 (Blk 403) and Orchard Rd (Lucky Plaza) during morning peak hours and between Orchard Rd (Lucky Plaza) and Bedok North Ave 3 (Bet Blks 139/140) during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2006	29 October	Serves relocated bus stop outside Orchard Stn along Orchard Turn.
	2009	23 February	Serves additional pair of bus stops outside and opposite Suntec City along Nicoll Highway.
	2015	3 December	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 30e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2005	19 September	Introduced between Bedok Int and Pasir Panjang Rd (Opp S'pore Science Pk II) during morning peak hours and between Pasir Panjang Rd (S'pore Science Pk II) and Bedok Int during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2006	19 March	Amended to ply Cassia Link, Cassia Cres, Guillemard Rd and Guillemard Camp Rd with the partial closure of Old Airport Rd and Dunman Rd to facilitate the construction of Dakota MRT station on the Circle MRT Line.
		29 October	Serves new bus stop outside VivoCity along Telok Blangah Rd.
	2008	7 December	Skips abolished bus stop opposite Temenggong D Mosque along Telok Blangah Rd.
		29 December	Amended to ply the reinstated Old Airport Rd and Dunman Rd, skipping Cassia Link, Guillemard Rd and Guillemard Camp Rd.
	2009	23 February	Serves 2 additional pairs of bus stops after and opposite PSA Wharves G3 and outside and opposite Heng Mui Keng Terr along Pasir Panjang Rd.
	2011	19 November	Amended to Bedok Temp Int.
	2012	27 August	Serves additional pair of bus stops outside and opposite Alexandra DP Blk 3 along Pasir Panjang Rd.
	2013	29 December	Amended to ply MCE with the partial closure of ECP.
	2014	30 November	Amended to Bedok Integrated Transport Hub.
	2016	25 January	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 43e

Operator	Year	Date	Service changes
Template:Go-Ahead Singapore (Current)	2019	9 September	Introduced between Punggol Temp Int and Marine Parade Rd (Opp Blk 72) during morning peak hours and between Marine Parade Rd (Bet Blks 72/74) and Punggol Temp Int during evening peak hours as a peak-hour one-directional service on weekdays. Wheelchair-accessible at launch.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 74e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2006	18 December	Introduced between Hougang Central Int and Buona Vista Ter during morning peak hours and between Buona Vista Ter and Hougang Central Int during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2015	28 September	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 89e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2005	19 September	Introduced between Hougang Central Int and Airport Cargo Rd (AirFreight Ter Bldg) during morning peak hours and between Airport Cargo Rd (CIAS Cargo Ters) and Hougang Central Int during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2009	23 February	Serves additional bus stop outside 3rd Cargo Agents along Airline Rd for evening peak trips.
	2014	24 August	Serves new pair of bus stops before and after Punggol Rd along TPE.
	2015	3 December	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 97e

Operator	Year	Date	Service changes
Template:SBS Transit	2005	3 January	Introduced between Jurong East Int and Fullerton Rd (Fullerton Sq) during morning peak hours and between Collyer Quay (Clifford Pier) and Jurong East Int during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
		12 June	Serves new bus stop outside Science Park along AYE.
	2006	29 October	Serves new bus stop outside VivoCity and additional bus stop opposite VivoCity along Telok Blangah Rd.
	2009	23 February	Extended to terminate at Raffles Ave (The Esplanade) for morning peak trips and start from Temasek Blvd (Suntec Convention Ctr) for evening peak trips.
			Serves additional pair of bus stops outside Blk 44 and opposite Blk 45 along Telok Blangah Rd.
	2010	26 April	Amended to Marina Ctr Ter.
	2011	17 December	Amended to Jurong East Temp Int.
	2013	1 December	Serves new bus stop outside Downtown Stn along Central Blvd.
	2015	28 September	Designated wheelchair-accessible bus service (WAB).
Template:Tower Transit Singapore (Current)	2016	12 June	Operations transferred to Tower Transit Singapore and converted to Express service.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 147e

Operator	Year	Date	Service changes
Template:SBS Transit	2018	28 January	Introduced between New Bridge Rd (Clarke Quay Stn) and Clementi Int and between Clementi Int and Eu Tong Sen St (Clarke Quay Stn Exit E) as a Fast Forward service, operating daily. Wheelchair-accessible at launch.
		12 August	Converted to Express service.
	2020	9 February	Withdrawn.

Service 151e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2006	18 December	Introduced between Hougang Central Int and Kent Ridge Ter during morning peak hours and between Kent Ridge Ter and Hougang Central Int during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2015	3 December	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 167e

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2018	25 November	Introduced between Sembawang Int and Shenton Way (Opp MAS Bldg) and between Anson Rd (Tg Pagar Stn Exit C) and Sembawang Int, operating daily. Wheelchair-accessible at launch.
	2020	9 February	Revised to operate in the mornings and afternoons (towards Shenton Way) and in the afternoons and evenings (towards Sembawang) on weekdays only.
		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 174e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2005	28 March	Introduced between Boon Lay Int and North Bridge Rd (St. Andrew's Cath) during morning peak hours and between North Bridge Rd (St. Andrew's Cath) and Boon Lay Int during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
		2 July	Amended to ply Grange Rd with the partial closure of Somerset Rd.
	2006	18 June	Amended to Boon Lay Temp Int.
		20 November	Extended to New Bridge Rd Ter.
			Serves additional pair of bus stops outside and opposite S'pore Botanic Gdns along Napier Rd.
	2009	27 December	Amended to Boon Lay Integrated Transport Hub.
	2011	14 August	Serves additional bus stop outside Clarke Quay Stn along Eu Tong Sen St.
	2015	28 September	Designated wheelchair-accessible bus service (WAB).
	2018	10 March	Extended to Kg Bahru Ter with the closure of New Bridge Rd Ter.
		12 August	Converted to Express service.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 188E/188e

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2007	25 June	Introduced between Choa Chu Kang Int and HarbourFront Int as a peak hour one-directional service during weekday mornings, numbered Service 188E.
	2015	22 March	Designated wheelchair-accessible bus service (WAB).
	2018	13 August	Renumbered as Service 188e.
		16 December	Amended to new Choa Chu Kang Int.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 188R

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2010	1 May	Introduced between Choa Chu Kang Int and Resorts World Sentosa, operating on Saturdays, Sundays and Public Holidays only.
	2015	22 March	Designated wheelchair-accessible bus service (WAB).
	2018	16 December	Amended to new Choa Chu Kang Int.
	2020	18 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		7 May	To resume normal operations.

Service 196e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2005	12 December	Introduced between Marine Parade Rd (Lagoon View) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Apex Twr) and Marine Parade Rd (Hua Xin Ct) during evening peak hours as a peak hour one-directional Fast Forward service on weekdays.
	2007	TBC	Serves additional bus stop outside Victoria Sch along Marine Parade Rd.
	2016	25 January	Designated wheelchair-accessible bus service (WAB).
	2018	12 August	Converted to Express service.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 501

Operator	Year	Date	Service changes
	1997	5 May	Introduced between Hougang Central Int and Penang Rd (AM Peak) and between Anson Rd and Hougang Central Int (PM Peak) as a peak hour one-directional service on weekdays and Saturdays.
		22 December	Converted to a day service on weekdays and Saturdays, looping at Penang Rd.
	2000	3 September	Extended to Sengkang Ter.
	2001	28 April	Amended to Sengkang Temp Int.
Template:SBS Transit	2003	18 January	Amended to Sengkang Integrated Transport Hub.
		27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.

Service 501X

Operator	Year	Date	Service changes
	1997	22 December	Introduced between Hougang Central Int and Temasek Ave (Loop) as an alternate route of Service 501, operating during off peak periods on weekdays and Saturdays and throughout the day on Sundays and Public Holidays.
	2000	3 September	Extended to Sengkang Ter.
	2001	28 April	Amended to Sengkang Temp Int.
Template:SBS Transit	2003	18 January	Amended to Sengkang Integrated Transport Hub.
		27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.

Service 502

Operator	Year	Date	Service changes
	1997	5 May	Introduced between Hougang Central Int and Boon Lay Int, operating daily.
	1999	TBC	Serves additional pair of bus stops outside and opposite The Synergy along Boon Lay Way.
	2000	3 September	Extended to Sengkang Ter.
	2001	28 April	Amended to Sengkang Temp Int.
Template:SBS Transit (Current)	2002	7 July	Skips the bus stop opposite Mandarin Singapore along Orchard Rd.
	2003	18 January	Amended to Sengkang Integrated Transport Hub.
		27 July	Shortened to loop at Temasek Ave from Boon Lay Int under North East MRT Line Rationalisation Phase 2.
	2005	2 July	Amended to ply Grange Rd with the partial closure of Somerset Rd.
		26 December	Extended to start from Pioneer Rd North (Opp Blk 653B), amended to ply Toh Guan Rd in both directions and ply Orchard Turn, Scotts Rd, Stevens Rd, Whitley Rd, PIE and Toh Tuck Ave towards Pioneer Rd North.
	2006	18 June	Serves new pair of bus stops outside Blk 683A and outside Blk 691A CP along Jurong West Central 1.
		29 October	Serves relocated bus stop outside Orchard Stn along Orchard Turn.
	2008	15 June	Serves new pair of bus stops outside Blk 670A and outside Blk 678D along Jurong West St 64.
	2009	23 February	Extended to Soon Lee Bus Park.
	2010	26 April	Amended to ply Bayfront Ave, Marina Station Rd, ECP, AYE, Clementi Ave 6 and Commonwealth Ave West, skipping Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd, Somerset Rd, Orchard Turn, Scotts Rd, Stevens Rd, Whitley Rd, PIE and Toh Tuck Ave.
	2012	14 January	Serves reinstated bus stop outside Marina Bay Stn along Marina St.
		30 September	Designated wheelchair-accessible bus service (WAB).
	2013	29 December	Amended to ply Central Blvd, Shenton Way and Keppel Rd with the opening of MCE, skipping Marina Station Rd and ECP.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 502A

Operator	Year	Date	Service changes
	2000	3 September	Introduced as a short-trip service from Sengkang Ter to Grange Rd (Opp Trader's Hotel).
	2001	28 April	Amended to Sengkang Temp Int.
Template:SBS Transit (Current)	2003	18 January	Amended to Sengkang Integrated Transport Hub.
		27 July	Amended to start from Boon Lay Int and terminate at Temasek Ave (Opp The Ritz-Carlton) after the last bus of Service 502 daily under North East MRT Line Rationalisation Phase 2.
	2005	26 December	Extended to start from Pioneer Rd North (Opp Blk 653B) and loop at Temasek Ave and converted to peak hour variant of Service 502, skipping Jurong West Ave 1, Jurong East Ave 1, Toh Guan Rd and Boon Lay Way.
	2006	18 June	Serves new pair of bus stops outside Blk 683A and outside Blk 691A CP along Jurong West Central 1.
		29 October	Serves relocated bus stop outside Orchard Stn along Orchard Turn.
	2008	15 June	Serves new pair of bus stops outside Blk 670A and outside Blk 678D along Jurong West St 64.
	2009	23 February	Extended to Soon Lee Bus Park.
	2010	26 April	Shortened to terminate at Marina Station Rd (Marina Bay Stn) and revised to operate during weekday morning peak hours only.
	2012	14 January	Serves reinstated bus stop outside Marina Bay Stn along Marina St.
		30 September	Designated wheelchair-accessible bus service (WAB).
	2013	29 December	Amended to terminate at Central Blvd (Downtown Stn) with the opening of MCE.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 502B

Operator	Year	Date	Service changes
Template:SBS Transit	2005	26 December	Introduced between Jurong West Ave 1 (Blk 538) and Temasek Ave (Loop) as a peak hour variant of Service 502 on weekdays.
	2006	29 October	Serves relocated bus stop outside Orchard Stn along Orchard Turn.
	2010	26 April	Withdrawn.

Service 503

Operator	Year	Date	Service changes
	1997	5 May	Introduced between Tampines Int and Temasek Ave (Opp Centennial Twr) during morning peak hours and between Anson Rd (Apex Twr) and Tampines Int during evening peak hours as a peak hour one-directional service on weekdays and Saturdays.
	1999	6 September	Extended to start from Pasir Ris Int, extended to loop at Telok Blangah Rd, converted to full day service and re-numbered Service 505.

Service 505

Operator	Year	Date	Service changes
	1999	6 September	Re-numbered from Service 503 as a service between Pasir Ris Int and Jln Bt Merah (Loop).
	2000	3 September	Shortened to loop at Temasek Ave and re-numbered Service 518.

Service 506

Operator	Year	Date	Service changes
	1999	28 August	Introduced between Jurong East Int and Bedok Int, operating daily.
	2000	3 September	Extended to Changi Airport.
	2001	TBC	Serves new pair of bus stops opposite Blk 761 and opposite Baywater along Bedok North Ave 3.
Template:SBS Transit (Current)	2002	TBC	Serves new pair of bus stops opposite and between Blks 731 and 734 along Bedok Reservoir Rd.
		15 September	Shortened back to Bedok Int.
	2006	TBC	Skips a pair of abolished bus stops outside and opposite Bedok Green Sec Sch along Bedok North Ave 3.
		12 November	Extended to Upp East Coast Ter.
	2010	13 February	Serves new pair of bus stops outside and opposite Blk 220 CP along Bedok North Ave 3.
	2011	17 December	Amended to Jurong East Temp Int.
	2012	30 September	Designated wheelchair-accessible bus service (WAB).
	2017	23 April	Serves relocated bus stop before PIE along Bt Batok Rd.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 507

Operator	Year	Date	Service changes
	1999	28 August	Introduced between Boon Lay Int and Shenton Way (Opp Temasek Twr) during morning peak hours and between Anson Rd (Intl Plaza) and Boon Lay Int during evening peak hours as a peak hour one-directional service on weekdays and Saturdays.
Template:SBS Transit	2004	22 August	Withdrawn.

Service 508

Operator	Year	Date	Service changes
	1999	28 August	Introduced between Sengkang Ter and Penang Rd (Park Mall) during morning peak hours and between Outram Rd (Outram Pk Stn) and Sengkang Ter during evening peak hours as a peak hour one-directional service on weekdays and Saturdays.
	2000	4 September	Shortened to Hougang Central Temp Ter and re-numbered Service 511.

Service 511

Operator	Year	Date	Service changes
	2000	4 September	Re-numbered from Service 508 as a peak-hour one-directional service between Hougang Central Temp Ter and Penang Rd (Park Mall) during morning peak hours and between Outram Rd (Outram Pk Stn) and Hougang Central Temp Ter during evening peak hours on weekdays and Saturdays.
Template:SBS Transit	2003	27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.

Service 512

Operator	Year	Date	Service changes
	2000	4 September	Introduced between Hougang Central Temp Ter and Orchard Rd (Le Meridien Shop Ctr) during morning peak hours and between Moulmein Rd (Opp Tan Tock Seng Hosp) and Hougang Central Temp Ter during evening peak hours as a peak hour one-directional service on weekdays and Saturdays.
Template:SBS Transit	2002	7 July	Skips the bus stop outside Orchard Emerald along Orchard Rd.
	2003	27 July	Withdrawn under North East MRT Line Rationalisation Phase 2.

Service 513

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2012	17 December	Introduced between Tampines Ave 5 (Darul Ghufran Mque) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Tampines Ave 5 (Opp Darul Ghufran Mque) during evening peak hours as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2013	31 March	Designated wheelchair-accessible bus service (WAB).
		1 December	Serves new bus stop outside Downtown Stn along Central Blvd.
		30 December	Amended to ply Sheares Ave for morning peak trips with the partial closure of ECP.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 518

Operator	Year	Date	Service changes
	2000	3 September	Re-numbered from Service 505 as a service between Pasir Ris Int and Temasek Ave (Loop).
Template:SBS Transit	2002	7 July	Skips the bus stop outside Orchard Emerald along Orchard Rd.
	2005	26 December	Amended to ply Pasir Ris Dr 3, Pasir Ris Dr 12 and Pasir Ris Dr 1, skipping Elias Rd.
	2010	26 April	Amended to ply Bayfront Ave, skipping Raffles Blvd and Republic Blvd.
	2012	29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
		3 December	Designated wheelchair-accessible bus service (WAB).
Template:Go-Ahead Singapore (Current)	2016	18 September	Operations transferred to Go-Ahead Singapore.
		23 September	Amended to ply KPE and PIE towards Pasir Ris Int, skipping Bedok South Ave 1, Bedok South Rd and Bedok North Ave 1.
	2017	21 October	Serves new pair of bus stops outside Tampines East Stn along Tampines Ave 2.
			Serves new bus stop outside Bedok North Stn along Bedok North Rd.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 518A

Operator	Year	Date	Service changes
	2000	3 September	Introduced as a short-trip service from Pasir Ris Int to Temasek Ave (Opp The Ritz-Carlton) during morning peak hours on weekdays.
Template:SBS Transit	2002	7 July	Skips the bus stop outside Orchard Emerald along Orchard Rd.
	2005	26 December	Amended to loop Temasek Ave and converted to a peak hour variant of Service 518 on weekdays, skipping Tampines Ave 7, Tampines Ave 2, Tampines Ave 1 and Bedok North Rd.
	2010	26 April	Shortened to terminate at Bayfront Ave (Opp Marina Bay Sands MICE) and revised to operate during weekday morning peak hours only.
	2012	29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
		3 December	Designated wheelchair-accessible bus service (WAB).
Template:Go-Ahead Singapore (Current)	2016	18 September	Operations transferred to Go-Ahead Singapore.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 518B

Operator	Year	Date	Service changes
Template:SBS Transit	2005	26 December	Introduced between Tampines Ave 7 (Blk 370) and Temasek Ave (Loop) as a peak hour variant of Service 518 on weekdays.
	2010	26 April	Withdrawn.

Service 520

Operator	Year	Date	Service changes
	1997	5 May	Introduced between Yishun Int and Outram Rd (Opp Outram Pk Stn) during morning peak hours and between New Bridge Rd Ter and Yishun Int during evening peak hours as a peak hour one-directional service on weekdays and Saturdays.
		7 December	Amended to ply Upp Pickering St, South Bridge Rd, Neil Rd and Cantonment Rd with the partial closure of New Bridge Rd to facilitate the construction of Chinatown MRT station on the North East MRT Line.
	2002	20 April	Amended to ply the reinstated New Bridge Rd, skipping Upp Pickering St, South Bridge Rd, Neil Rd and Cantonment Rd.
		TBC	Serves bus stop outside Blk 923 along Yishun Ave 2, skipping the bus stop outside Northpoint Shop Ctr.
	2003	24 August	Withdrawn.

Service 521

Operator	Year	Date	Service changes
	1999	6 September	Introduced between Bt Panjang Ter and World Trade Ctr Ter.
		26 December	Amended to Bt Panjang Int.
	2000	TBC	Serves additional pair of bus stops outside and opposite ITE Dover along AYE.
	2002	29 September	Extended to Woodlands Reg Int, amended to ply Bt Batok East Ave 4, converted to trunk service and re-numbered Service 963.

Service 850E

Operator	Year	Date	Service changes
Template:SMRT Buses	2013	18 February	Introduced between Yishun Ave 11 (Opp Blk 419) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Yishun Ave 11 (Blk 419) during evening peak hours as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2015	24 May	Serves new bus stop opposite Blk 333C along Yishun St 31.
			Serves additional bus stop between Blks 333C and 333D along Yishun St 31.
		6 September	Serves new pair of bus stops outside and opposite Blk 672C along Yishun Ring Rd.
		28 September	Amended to start from Yishun St 41 (Blk 432C) for morning peak trips, terminate at Yishun Ring Rd (Blk 456) for evening peak trips and amended to ply Yishun Ave 1 with the introduction of City Direct Service 663, skipping Yishun Ave 6 and Yishun St 31.
	2016	16 October	Serves new bus stop outside Blk 504C along Yishun Ring Rd.
	2017	17 September	Designated wheelchair-accessible bus service (WAB).
Template:SBS Transit (Current)	2018	25 March	Operations transferred to SBS Transit.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 851e

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2018	27 May	Introduced between Yishun Temp Int and New Bridge Rd (Opp Pearl's Ctr) and between Eu Tong Sen St (Pearl's Ctr) and Yishun Temp Int, operating daily. Wheelchair-accessible at launch.
	2019	8 September	Amended to Yishun Integrated Transport Hub.
	2020	9 February	Revised to operate in the mornings and afternoons (towards New Bridge Rd) and afternoons and evenings (towards Yishun) daily.
		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 854E/854e

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2007	9 April	Introduced between Yishun Int and Bedok Int as a peak hour one-directional service during weekday mornings, numbered Service 854E.
	2011	19 November	Amended to terminate at Bedok Temp Int.
	2014	30 November	Amended to terminate at Bedok Integrated Transport Hub.
	2015	14 March	Amended to start from Yishun Temp Int.
		11 October	Designated wheelchair-accessible bus service (WAB).
	2018	13 August	Renumbered as Service 854e.
	2019	8 September	Amended to Yishun Integrated Transport Hub.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 868/868E

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2010	28 September	Introduced between Bt Batok West Ave 5 (Blk 347) and Temasek Ave (Opp Millenia Twr) as a peak hour one-directional service during weekday mornings, numbered Service 868.
	2017	17 September	Designated wheelchair-accessible bus service (WAB).
	2018	9 April	Serves 2 additional bus stops opposite HomeTeamNS and outside Blk 334 along Bt Batok West Ave 7.
		13 August	Renumbered as Service 868E.
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 951E

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2013	17 June	Introduced between Woodlands St 82 (Blk 875) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Woodlands St 82 (Blk 816) during evening peak hours as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2015	12 October	Amended to ply Woodlands Ave 5 with the introduction of City Direct Service 665, skipping Woodlands Ave 1.
	2017	17 September	Designated wheelchair-accessible bus service (WAB).
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 960e

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2018	28 October	Introduced between Woodlands Temp Int and Marina Ctr Ter, operating daily. Wheelchair-accessible at launch.
	2020	9 February	Revised to operate in the mornings and afternoons (towards Marina Ctr) and afternoons and evenings (towards Woodlands) daily.
		15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 963E/963e

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2006	20 February	Introduced between Woodlands Reg Int and HarbourFront Int as a peak hour one-directional service during weekday mornings, numbered Service 963E.
	2009	11 May	Extended to operate between HarbourFront Int and Woodlands Reg Int during weekday evenings.
	2015	14 June	Designated wheelchair-accessible bus service (WAB).
	2016	12 March	Amended to Woodlands Temp Int.
	2017	4 September	Serves the pair of bus stops outside and opposite Blk 180 along Jelebu Rd, skipping the pair of bus stops outside and opposite Bt Panjang Plaza.
	2018	13 August	Renumbered as Service 963e.
	2020	15 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 963R

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2010	30 January	Introduced between Woodlands Reg Int and Resorts World Sentosa, operating on Saturdays, Sundays and Public Holidays only.
	2015	14 June	Designated wheelchair-accessible bus service (WAB).
	2016	12 March	Amended to Woodlands Temp Int.
	2017	4 September	Serves the pair of bus stops outside and opposite Blk 180 along Jelebu Rd, skipping the pair of bus stops outside and opposite Bt Panjang Plaza.
	2020	18 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		7 May	To resume normal operations.

Service 971E

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2011	14 March	Introduced between Bt Panjang Int and Cecil St (Prudential Twr) as a peak hour one-directional service during weekday mornings.
		29 August	Extended to operate between Anson Rd (Intl Plaza) and Bt Panjang Int during weekday evenings.
	2012	16 December	Amended to start from and terminate at Jelebu Rd with the closure of Bt Panjang Int.
	2015	16 August	Serves 2 new bus stops between Blks 443A and 443B and outside Blk 442D along Fajar Rd.
		6 September	Serves new pair of bus stops outside Blk 548B and outside Blk 547C along Segar Rd.
	2017	4 September	Skips a pair of bus stops outside and opposite Blk 180 along Jelebu Rd.
		17 September	Designated wheelchair-accessible bus service (WAB).
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.

Service 982E

Operator	Year	Date	Service changes
Template:SMRT Buses (Current)	2013	18 March	Introduced between Choa Chu Kang Ave 5 (Blk 483) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Aft Marina Stn Rd) and Choa Chu Kang Ave 5 (Opp Blk 486) during evening peak hours as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		1 December	Serves new bus stop outside Downtown Stn along Central Blvd.
	2014	17 February	Serves 3 additional pairs of bus stops outside and opposite Blk 26 along Choa Chu Kang Rd, outside and opposite Bt Batok Fire Stn and before and after Bt Batok West Ave 5 along Bt Batok Rd.
	2015	27 April	Serves new pair of bus stops outside and opposite Blk 489A along Choa Chu Kang Ave 5.
	2017	17 September	Designated wheelchair-accessible bus service (WAB).
	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
		5 May	To resume normal operations.