History of Services 1 - 10

Service 1

Operator	Year	Date	Service changes
Associated Bus Service	1971	11 April	Introduced between Changi Point Ter and Delta Circus Ter under 1971 Bus Reorganisation.
	1973	11 March	Amended to ply Zion Rd towards Delta Circus Ter with the partial conversion of Kim Seng Rd to one-way traffic.
	1974	1 December	Amended to ply New Upp Changi Rd, Bedok Plain, Bedok Heights, Upp East Coast Rd and Bedok Rd.
		8 December	Amended to ply the extended Robinson Rd, skipping Market St.
	1975	2 February	Amended to ply Tiong Bahru Rd and the extended Zion Rd towards Delta Circus Ter with the partial conversion of Kim Seng Rd and Outram Rd to one-way traffic.
		2 March	Amended to ply Sims Ave towards Changi Point Ter with the conversion of Geylang Rd to one-way traffic.
		25 May	Amended to ply Bedok Walk and New Upp Changi Rd, skipping Bedok Heights and Upp East Coast Rd.
		TBC	Amended to new Changi Point Ter.
		14 November	Amended to ply New Upp Changi Rd, skipping Bedok Plain and Bedok Walk.
	1976	15 February	Serves new staggered bus stop between Bank of India and Hong Leong Holdings along Robinson Rd.
	1979	11 February	Amended to ply the extended Shenton Way towards Delta Circus Ter, skipping Parsi Rd and Anson Rd.
		14 October	Amended to ply Sims Ave East towards Changi Point Ter with the conversion of Changi Rd to one-way traffic.
		11 November	Amended to Delta Fringe Car Park.
	1980	20 January	Amended to ply Spottiswoode Park Rd with the partial conversion of Cantonment Rd to one-way traffic.
	1981	TBC	Revised to operate on weekdays and Saturdays only.
		15 June	Amended to ply Loyang Ave and Loyang Way with the partial closure of Upp Changi Rd.
		11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
	1987	6 April	Skips abolished bus stop before College Rd along Outram Rd.
	1989	5 November	Withdrawn.

Service 1A

Operator	Year	Date	Service changes
Associated Bus Service	1971	1 August	Introduced between Changi Point Ter and Delta Circus Ter.
	1973	11 March	Amended to ply Zion Rd towards Delta Circus Ter with the partial conversion of Kim Seng Rd to one-way traffic.
	1974	3 February	Re-numbered Service 3 under 1974 Bus Rationalisation.

Service 2

Operator	Year	Date	Service changes
Associated Bus Service	1971	11 April	Introduced between Changi Point Ter and Commonwealth Ave Ter under 1971 Bus Reorganisation.
	1974	1 December	Amended to ply New Upp Changi Rd, Bedok Plain, Bedok Heights, Upp East Coast Rd and Bedok Rd.
	1975	2 March	Amended to ply Sims Ave towards Changi Point Ter with the conversion of Geylang Rd to one-way traffic.
		25 May	Amended to ply Bedok Walk and New Upp Changi Rd, skipping Bedok Heights and Upp East Coast Rd.
		TBC	Amended to new Changi Point Ter.
		14 November	Amended to ply New Upp Changi Rd, skipping Bedok Plain and Bedok Walk.
	1979	14 October	Amended to ply Sims Ave East towards Changi Point Ter with the conversion of Changi Rd to one-way traffic.
	1980	28 December	Amended to ply Jln Bt Merah and Kg Bahru Rd, skipping Outram Rd, Tiong Bahru Rd and Henderson Rd.
	1981	15 June	Amended to ply Loyang Ave and Loyang Way with the partial closure of Upp Changi Rd.
	1982	TBC	Amended to Buona Vista Ter.
	1987	27 September	Amended to ply the extended Eu Tong Sen St towards Changi Village Ter to facilitate the first stage of road expansion along New Bridge Rd.
		1 November	Amended to ply Eu Tong Sen St towards Changi Village Ter to facilitate the second stage of road expansion along New Bridge Rd.
		13 December	Serves new staggered bus stop opposite Peninsula Plaza along North Bridge Rd, skipping the bus stop outside St Andrew's Cathedral.
	1989	29 January	Serves relocated bus stop opposite Sri Mariamman Tp along South Bridge Rd, skipping the bus stop opposite Jamae Mosque.
			Serves additional bus stop opposite Upp Hokien St along South Bridge Rd.
	1990	22 July	Serves additional bus stop outside Ellenborough Market along Eu Tong Sen St.
	1992	29 November	Shortened to New Bridge Rd Ter under TransitLink Network Integration Exercise Phase 10.
	1993	11 April	Amended to ply Jln Sultan, Victoria St, Hill St and New Bridge Rd, skipping South Bridge Rd and Neil Rd.
	1994	3 July	Amended to ply Kallang Rd and Victoria St, skipping Crawford St, North Bridge Rd and Jln Sultan.
	1996	TBC	Serves additional bus stop outside Kallang Stn along Sims Ave.
	1997	TBC	Skips abolished bus stop opposite Bena Pk along Upp Changi Rd North.
		7 December	Amended to ply Upp Pickering St, South Bridge Rd and Kreta Ayer Rd with the partial closure of New Bridge Rd to facilitate the construction of Chinatown MRT station on the North East MRT Line.
	1999	TBC	Serves bus stop outside Bugis Stn along Victoria St, skipping the bus stop opposite Bugis Junction.
Template:SBS Transit	2002	20 April	Amended to ply the reinstated New Bridge Rd, skipping Upp Pickering St, South Bridge Rd and Kreta Ayer Rd.
		TBC	Serves new pair of bus stops outside and opposite Changi Chapel Museum along Upp Changi Rd North.
	2004	TBC	Serves new bus stop before Changi Fire Stn along Upp Changi Rd.
	2005	TBC	Serves new bus stop outside ITE Reg Campus along Upp Changi Rd.
	2007	22 May	Designated wheelchair-accessible bus service (WAB).
	2013	29 December	Amended to ply Upp Changi Link with the partial closure of Upp Changi Rd.
Template:Go-Ahead Singapore (Current)	2016	18 September	Operations transferred to Go-Ahead Singapore.
	2018	10 March	Extended to Kg Bahru Ter with the closure of New Bridge Rd Ter.
		8 April	Serves new pair of bus stops after Somapah Rd and before Simei Rd along Upp Changi Rd East.

Service 2A

Operator	Service Gen	Year	Date	Service changes
Associated Bus Service	1st Gen (1971 - 1974)	1971	1 August	Introduced between Changi Point Ter and Commonwealth Ave Ter.
		1974	3 February	Withdrawn under 1974 Bus Rationalisation.
	2nd Gen (2000 - 2012)	2000	TBC	Re-introduced as a short-trip service from Changi Village Ter to New Upp Changi Rd (Bedok Stn) during evening peak hours on weekdays.
Template:SBS Transit		2007	22 May	Designated wheelchair-accessible bus service (WAB).
		2012	23 July	Withdrawn.
Template:Go-Ahead Singapore (Current)	3rd Gen (Since 2018)	2018	12 March	Re-introduced as a short-trip service from Kg Bahru Ter to New Upp Changi Rd (Tanah Merah Stn Exit A) during peak hours on weekdays. Wheelchair-accessible at launch.

Service 3

Operator	Service Gen	Year	Date	Service changes
	1st Gen (1974 - 1991)	1974	3 February	Re-numbered from Service 1A as a service between Changi Point Ter and Delta Circus Ter.
			1 December	Amended to ply New Upp Changi Rd, Bedok Plain, Bedok Heights, Upp East Coast Rd and Bedok Rd.
		1975	2 February	Amended to ply Tiong Bahru Rd and the extended Zion Rd towards Delta Circus Ter with the partial conversion of Kim Seng Rd and Outram Rd to one-way traffic.
			2 March	Amended to ply Sims Ave towards Changi Point Ter with the conversion of Geylang Rd to one-way traffic.
			25 May	Amended to ply Bedok Walk and New Upp Changi Rd, skipping Bedok Heights and Upp East Coast Rd.
			TBC	Amended to new Changi Point Ter.
		1976	15 July	Amended to ply Upp Changi Rd, skipping Telok Paku Rd and Nicoll Dr.
		1977	27 February	Shortened to Bedok South Rd Ter.
		1979	8 April	Amended to Bedok Int, shortened to loop at New Bridge Rd and converted to a semi-express service.
			14 October	Amended to ply Sims Ave East towards Bedok Int with the conversion of Changi Rd to one-way traffic.
		1983	27 November	Integrated with Service 6 and amended to ply Kallang Rd/Crawford St and Victoria St/North Bridge Rd.
		1986	12 January	Converted to trunk service.
		1987	26 January	Extended to Jurong East Int.
			27 September	Amended to ply the extended Eu Tong Sen St towards Bedok Int to facilitate the first stage of road expansion along New Bridge Rd.
			1 November	Amended to ply Eu Tong Sen St towards Bedok Int to facilitate the second stage of road expansion along New Bridge Rd.
		1988	20 March	Amended to ply Upp Cross St and New Bridge Rd, skipping Neil Rd.
		1989	19 February	Serves new bus stop outside Blk 135 along Jurong East St 13.
			19 November	Serves new bus stop outside Kallang Stn along Sims Ave.
		1990	22 July	Serves additional bus stop outside Ellenborough Market along Eu Tong Sen St.
		1991	6 January	Withdrawn under TransitLink Network Integration Exercise Phase 1.
Template:SBS Transit	2nd Gen (Since 2002)	2002	7 April	Re-introduced between Tampines Int and Pasir Ris St 71 (Loop) with the integration of Services 294 and 357.
		2003	TBC	Serves new bus stop outside Blk 741 along Pasir Ris Dr 10.
			19 October	Extended to loop at Punggol Central.
			30 November	Amended to Punggol Temp Int.
		2009	5 September	Serves new pair of bus stops outside Blk 231A CP and outside Blk 485 along Pasir Ris Dr 4.
			26 October	Designated wheelchair-accessible bus service (WAB).
		2012	29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
		2014	24 August	Serves new pair of bus stops before and after Punggol Rd along TPE.
		2015	12 December	Amended to ply the extended Pasir Ris Dr 8 with the permanent closure of the west ring of Pasir Ris Central.
Template:Go-Ahead Singapore (Current)		2016	4 September	Operations transferred to Go-Ahead Singapore.
		2017	21 October	Serves new pair of bus stops outside Tampines East Stn along Tampines Ave 2.

Service 3A

Operator	Year	Date	Service changes
Template:SBS Transit	2003	19 October	Introduced as a short-trip service from Tampines Int to Pasir Ris Dr 12 (Blk 747A) during evening peak hours on weekdays and after the last bus of Service 3 daily.
	2009	5 September	Serves new bus stop outside Blk 485 along Pasir Ris Dr 4.
		26 October	Designated wheelchair-accessible bus service (WAB).
	2015	12 December	Amended to ply the extended Pasir Ris Dr 8 with the permanent closure of the west ring of Pasir Ris Central.
Template:Go-Ahead Singapore (Current)	2016	4 September	Operations transferred to Go-Ahead Singapore.
	2017	21 October	Serves new bus stop outside Tampines East Stn along Tampines Ave 2.

Service 3B

Operator	Year	Date	Service changes
Template:SBS Transit	2003	19 October	Introduced as a short-trip service from Pasir Ris Dr 1 (Blk 738) to Pasir Ris Int during evening peak hours on weekdays.
	2009	26 October	Designated wheelchair-accessible bus service (WAB).
	2015	12 December	Amended to ply the extended Pasir Ris Dr 8 with the permanent closure of the west ring of Pasir Ris Central.
	2016	4 September	Withdrawn.

Service 4

Operator	Service Gen	Year	Date	Service changes
Associated Bus Service	1st Gen (1971 - 1974)	1971	11 April	Introduced between Changi Point Ter and Lloyd Leas Estate (Loop) under 1971 Bus Reorganisation.
		1974	3 February	Withdrawn under 1974 Bus Rationalisation.
	2nd Gen (1979 - 1993)	1979	11 March	Re-introduced between Bedok Int and Lor 1 Geylang (Loop).
			14 October	Amended to ply Sims Ave East towards Bedok Int with the conversion of Changi Rd to one-way traffic.
		1980	TBC	Extended to loop at Moulmein Rd.
		1988	31 July	Extended to St. Michael's Ter.
		1989	19 November	Serves new bus stop outside Kallang Stn along Sims Ave.
		1990	10 March	Integrated with Service 19 and extended to Pasir Ris Int.
		1992	29 November	Shortened to Tampines Int under TransitLink Network Integration Exercise Phase 10.
		1993	23 May	Integrated with Services 21 and 67 and withdrawn under TransitLink Network Integration Exercise Phase 13.
Template:SBS Transit (Current)	3rd Gen (Since 2013)	2013	17 March	Re-introduced between Tampines Int and Changi North Way (Loop) under the LTA's Bus Service Enhancement Programme (BSEP).
			31 March	Designated wheelchair-accessible bus service (WAB).

Service 5

Operator	Service Gen	Year	Date	Service changes
Amalgamated Bus Company	1st Gen (1971 - 1999)	1971	11 April	Introduced between Upp Changi Rd 8¼ m.s. Ter and Commonwealth Ave Ter under 1971 Bus Reorganisation.
		1972	11 June	Amended to ply the extended Upp Cross St with the partial conversion of Havelock Rd to one-way traffic, skipping New Bridge Rd.
		1973	TBC	Extended to Bt Timah Ter.
		1974	3 February	Shortened to Chai Chee Ter under 1974 Bus Rationalisation.
		1975	2 March	Amended to ply Sims Ave towards Chai Chee Ter with the conversion of Geylang Rd to one-way traffic.
		1977	17 October	Shortened to Geylang Fringe Car Park and amended to ply Lavender St, Kallang Bahru, Boon Keng Rd and Lor 1 Geylang.
		1979	30 December	Amended to ply Jln Anak Bt towards Geylang Fringe Car Park with the partial conversion of Upp Bt Timah Rd to one-way traffic.
		1986	1 June	Extended to Zhenghua Ter.
		1987	27 September	Amended to ply the extended Eu Tong Sen St towards Lor 1 Geylang Ter to facilitate the first stage of road expansion along New Bridge Rd.
			11 October	Amended to Bt Panjang Ter.
			1 November	Amended to ply Eu Tong Sen St towards Lor 1 Geylang Ter to facilitate the second stage of road expansion along New Bridge Rd.
			13 December	Serves new staggered bus stop opposite Peninsula Plaza along North Bridge Rd, skipping the bus stop outside St Andrew's Cathedral.
		1989	25 June	Skips the bus stop after Tan Boon Chong Ave along Holland Rd.
			19 November	Serves new bus stop outside Kallang Stn along Sims Ave.
		1990	22 July	Serves additional bus stop outside Ellenborough Market along Eu Tong Sen St.
		1992	29 March	Amended to ply Holland Ave, Commonwealth Ave, Margaret Dr, Alexandra Rd, Lower Delta Rd, Jln Bt Merah, Kg Bahru Rd and Eu Tong Sen St/New Bridge Rd under TransitLink Network Integration Exercise Phase 6, skipping Queensway, Commonwealth Ave, Alexandra Rd, Ganges Ave and Havelock Rd.
		1993	11 April	Amended to ply Jln Sultan, Victoria St, Hill St and New Bridge Rd, skipping South Bridge Rd and Upp Cross St.
		1994	3 July	Amended to ply Kallang Rd and Victoria St, skipping Crawford St, North Bridge Rd and Jln Sultan.
		1995	17 September	Operations transferred to Trans-Island Bus Service (TIBS).
		1997	TBC	Skips the bus stop outside Kallang Stn along Sims Ave.
			7 December	Amended to ply Upp Pickering St, South Bridge Rd and Neil Rd with the partial closure of New Bridge Rd to facilitate the construction of Chinatown MRT station on the North East MRT Line.
		1999	26 December	Withdrawn under Bukit Panjang LRT Rationalisation.
Template:SBS Transit (Current)	2nd Gen (Since 2007)	2007	11 March	Re-introduced between Pasir Ris Int and Bt Merah Int.
		2008	TBC	Serves new pair of bus stops before and after Pasir Ris Dr 3 along New Loyang Link.
		2011	27 June	Designated wheelchair-accessible bus service (WAB).
			28 August	Amended to ply Jln Tenaga, Bedok Reservoir Rd and Jln Damai with the partial closure of Kaki Bt Ave 1 to facilitate the construction of Kaki Bukit MRT station on the Downtown MRT Line.
		2016	24 April	Amended to ply the reinstated Kaki Bt Ave 1, skipping Jln Tenaga, Bedok Reservoir Rd and Jln Damai.
		2019	21 July	Amended to ply Flora Dr, Flora Rd and Mariam Way, skipping a section of Upper Changi Rd North.

Service 6

Operator	Service Gen	Year	Date	Service changes
	1st Gen (1977 - 1983)	1977	11 July	Introduced between Chai Chee Ter and North Bridge Rd (Loop) as a semi-express service.
		1979	25 February	Amended to Bedok Int.
			14 October	Amended to ply Sims Ave East towards Bedok Int with the conversion of Changi Rd to one-way traffic.
		1983	27 November	Integrated with Service 3 and withdrawn.
	2nd Gen (Since 1993)	1993	25 October	Re-introduced between Pasir Ris Int and Loyang Cres (Loop) as a peak hour service on weekdays and Saturdays only.
		1994	24 October	Converted to day service.
Template:SBS Transit		2004	20 December	Amended to ply Loyang Way and Loyang Ave towards Pasir Ris Int.
		2013	3 December	Designated wheelchair-accessible bus service (WAB).
Template:Go-Ahead Singapore (Current)		2016	18 September	Operations transferred to Go-Ahead Singapore.

Service 7

Operator	Year	Date	Service changes
	1979	11 March	Introduced between Bedok Int and Holland Rd Fringe Car Park (Loop) as a semi-express service, replacing Blue Arrow Service 307.
	1983	TBC	Integrated with Service 191 and extended to Clementi Int.
	1985	6 January	Extended to Jurong East Ter.
		30 June	Amended to Jurong East Int.
		29 August	Converted to trunk service.
	1989	19 February	Serves new bus stop outside Blk 135 along Jurong East St 13.
		5 November	Amended to ply Mountbatten Rd, Geylang Rd, Kallang Rd/Crawford St and Victoria St/North Bridge Rd, skipping Nicoll Highway.
	1991	7 April	Shortened to Clementi Int and amended to ply Clementi Ave 5 towards Bedok Int under TransitLink Network Integration Exercise Phase 3, skipping Commonwealth Ave West and Clementi Ave 2.
		28 April	Amended to ply Clementi Ave 5 towards Clementi Int under TransitLink Network Integration Exercise Phase 4.
	1992	TBC	Amended to ply Orchard Link, skipping Grange Rd.
Template:SBS Transit (Current)	2002	7 July	Skips the bus stop opposite Mandarin Singapore along Orchard Rd.
	2005	5 June	Amended to ply Sims Ave and Sims Way with the partial closure of southbound Mountbatten Rd.
		2 July	Amended to ply Sims Way and Geylang Rd with the partial closure of northbound Mountbatten Rd and amended to ply Grange Rd with the partial closure of Somerset Rd.
	2006	29 October	Amended to Clementi Temp Int.
	2007	20 August	Designated wheelchair-accessible bus service (WAB).
	2011	19 November	Amended to Bedok Temp Int.
		26 November	Amended to Clementi Integrated Transport Hub.
	2014	30 November	Amended to Bedok Integrated Transport Hub.

Service 7A

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2018	25 February	Introduced as a short-trip service from Bedok Integrated Transport Hub to Orchard Blvd (Bef Orchard Stn Exit B). Wheelchair-accessible at launch.

Service 7B

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2018	25 February	Introduced as a short-trip service from Clementi Integrated Transport Hub to Orchard Rd (Dhoby Ghaut Stn). Wheelchair-accessible at launch.

Service 8

Operator	Service Gen	Year	Date	Service changes
	1st Gen (1979 - 1989)	1979	26 February	Introduced between Bedok Int and Shenton Way (Loop) as a semi-express service, operating on weekdays and Saturdays only.
			14 October	Amended to ply Sims Ave East towards Bedok Int with the conversion of Changi Rd to one-way traffic.
		1981	11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
		1983	TBC	Amended to ply Bedok South Rd, Bedok South Ave 1 and ECP, skipping Connaught Dr, Collyer Quay, Raffles Quay and Shenton Way.
		1986	30 November	Extended to loop at Marina Ctr Ter.
		1989	6 November	Withdrawn.
	2nd Gen (Since 1990)	1990	1 March	Re-introduced between Pasir Ris Int and Toa Payoh Int.
		1992	29 November	Shortened to Tampines Int under TransitLink Network Integration Exercise Phase 10.
		1994	5 March	Amended to ply Kim Keat Link and Lor 6 Toa Payoh towards Toa Payoh Int.
		1995	18 September	Amended to ply Tampines Ave 1, Tampines Ave 10 and Bedok North Rd with the opening of Temasek Polytechnic.
		1998	31 May	Amended to temporary site of Toa Payoh Int.
				Serves new pair of bus stops outside and opposite Toa Payoh Swim Cplx along Lor 6 Toa Payoh.
		2000	TBC	Serves new pair of bus stops outside and opposite Tropica Condo along Tampines Ave 1.
Template:SBS Transit (Current)		2002	19 May	Amended to Toa Payoh Integrated Transport Hub.
		2011	4 September	Amended to skip Bendemeer Rd, Whampoa North and Serangoon Rd towards Toa Payoh Integrated Transport Hub with the permanent closure of Whampoa North.
		2017	12 February	Serves new pair of bus stops before and after Ubi Rd 3 along Ubi Ave 2.
			21 August	Designated wheelchair-accessible bus service (WAB).
			21 October	Serves new pair of bus stops outside Tampines East Stn along Tampines Ave 2.

Service 9

Operator	Year	Date	Service changes
	1979	9 April	Introduced between Geylang Fringe Car Park and Changi Point Ter, operating on weekdays and Saturdays only.
		14 October	Amended to ply Sims Ave East towards Changi Point Ter with the conversion of Changi Rd to one-way traffic.
	1981	TBC	Extended to operate on Sundays and public holidays.
		15 June	Amended to ply Loyang Ave and Loyang Way with the partial closure of Upp Changi Rd.
	1983	25 June	Integrated with Services 391 and 395 and extended to loop at Changi Airport Cargo Complex under Changi Airport Bus Plan 1983.
	1985	15 December	Amended to ply Loyang Ave, skipping Loyang Way.
	1987	20 September	Skips 2 pairs of abolished bus stops along Upp Changi Rd East with the opening of TPE.
	1988	10 April	Amended to ply Upp Changi Rd East, Simei Rd, Tampines Ave 2 and Tampines Ave 7, skipping Bedok Rd and Upp Changi Rd.
	1992	29 November	Shortened to Bedok Int under TransitLink Network Integration Exercise Phase 10.
	1993	13 September	Skips the bus stop outside Bedok Stn along New Upp Changi Rd towards Bedok Int.
	1995	15 January	Amended to ply Bedok Rd, Upp Changi Rd, Simei Ave and Simei St 3, skipping Upp Changi Rd East.
Template:SBS Transit (Current)	2003	TBC	Serves new pair of bus stops outside and opposite Loyang Ind Est along Loyang Ave.
	2004	TBC	Serves new bus stop before Changi Fire Stn along Upp Changi Rd.
	2008	TBC	Serves new bus stop outside Changi Beach CP 2 along Nicoll Dr, skipping the bus stop opposite Changi Beach CP 2.
	2011	19 November	Amended to Bedok Temp Int.
	2014	30 November	Amended to Bedok Integrated Transport Hub.
		3 December	Designated wheelchair-accessible bus service (WAB).
	2017	21 October	Serves new pair of bus stops outside Tampines East Stn along Tampines Ave 2.

Service 9A

Operator	Year	Date	Service changes
	2000	TBC	Introduced as a short-trip service from Bedok Int to Loyang Ave (Blk 149A) during evening peak hours on weekdays.
Template:SBS Transit (Current)	2004	TBC	Serves new bus stop before Changi Fire Stn along Upp Changi Rd.
	2011	19 November	Amended to Bedok Temp Int.
	2014	30 November	Amended to Bedok Integrated Transport Hub.
		3 December	Designated wheelchair-accessible bus service (WAB).
	2017	21 October	Serves new bus stop outside Tampines East Stn along Tampines Ave 2.

Service 10

Operator	Year	Date	Service changes
Associated Bus Service	1971	11 April	Introduced between Bedok Rd Ter and Prince Edward Ter under 1971 Bus Reorganisation.
		16 June	Extended to Shipyard Rd Ter.
	1974	TBC	Amended to Upp Changi Rd 8¼ ms (13.3km) Ter.
		8 December	Amended to ply the extended Robinson Rd, skipping Market St.
	1976	15 February	Serves new staggered bus stop outside Overseas Union Finance along Robinson Rd.
	1978	1 June	Amended to Jurong Int.
	1979	11 February	Amended to ply the extended Shenton Way towards Jurong Int, skipping Parsi Rd and Anson Rd.
		TBC	Relocated to Upp Changi Rd 15.5km Ter.
	1980	15 June	Amended to Somapah Int.
	1981	11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
	1984	27 April	Extended to Tampines Ter.
	1986	7 December	Serves new bus stop before Bedok South Ave 3 along Upp East Coast Rd.
	1987	29 November	Amended to Tampines Int.
	1988	3 January	Serves new staggered bus stop opposite Treasury Bldg along Shenton Way, skipping the bus stop opposite Marina House.
		23 October	Skips a pair of bus stops outside and opposite Tampines Stadium along Tampines Ave 5.
	1990	1 July	Shortened to Clementi Int with the opening of Boon Lay Int.
	1992	28 June	Amended to ply Tg Katong Rd, Dunman Rd and Old Airport Rd under TransitLink Network Integration Exercise Phase 8.
	1994	29 May	Serves 2 new pairs of bus stops outside The Concourse, outside Golden Mile Twr and outside and opposite Suntec City along Nicoll Highway.
	1997	TBC	Serves an additional pair of bus stops outside and opposite Tampines Stadium along Tampines Ave 5.
	1999	7 March	Shortened to Kent Ridge Ter with the introduction of Service 188.
	2000	TBC	Amended to ply Esplanade Dr, skipping Connaught Dr/Empress Pl.
Template:SBS Transit (Current)	2002	TBC	Skips abolished bus stop opposite ITE Pasir Panjang along Telok Blangah Rd.
	2004	20 April	Amended to ply Mountbatten Rd, Geylang Rd, Kallang Rd, Victoria St, Jln Sultan and Beach Rd to facilitate reinstatement works for the collapsed Nicoll Highway.
		TBC	Serves new bus stop before Changi Fire Stn along Upp Changi Rd.
		6 December	Amended to ply the reinstated Nicoll Highway, skipping Mountbatten Rd, Geylang Rd, Kallang Rd, Victoria St, Jln Sultan and Beach Rd.
	2005	2 July	Serves bus stop outside Fullerton Square along Fullerton Rd and an additional bus stop opposite AIA Tower along Robinson Rd with the abolition of the bus stop outside Clifford Ctr along Collyer Quay.
	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.
	2012	26 March	Designated wheelchair-accessible bus service (WAB).