The assembly of the Space Station would not be possible without Canada’s contribution, which takes the form of a complex robotics system known as the Mobile Servicing System (MSS). The MSS is made up of three main components: Canadarm2 (also known as the Space Station Remote Manipulator, or SSRMS), the Mobile Remote Maintenance Unit (MBS) Base, and the Specialized Agile Remote Manipulator (SPDM) . The Mobile Servicing System will play an essential role in the in-orbit construction of the Station as well as during the ten years of its operation.

Year	Dated	Flight	Element
1998	November 20, 1998	1A / R: Proton	Zarya Control Module
	December 4, 1998	2A; STS-88	Unity module
	May 27, 1999	2A.1; STS-96	Logistics
2000	May 19, 2000	Flight 2A.2; STS-101	Logistics II
	July 12, 2000	1R; Proton	Zvezda module
	September 8, 2000	2A.2b; STS-106	Logistics III
	October 11, 2000	3A; STS-92	External structure
	October 31, 2000	2R; Soyuz	Expedition 1
	November 30, 2000	Flight 4A; STS-97	Solar panels
2001	February 7, 2001	5A; STS-98	Destiny module
	March 8, 2001	5A.1; STS-102	MPLM Leonardo
	April 19, 2001	6A; STS-100	MPLM Raffaello and Canadarm2
	July 12, 2001	7A; STS-104	Exit airlock (End of the initial phase)
	Aug 10, 2001	Flight 7A.1; STS-105	Expedition III, Logistics
	December 5, 2001	UF-1; STS-108	Expedition IV, Logistics
2002	April 8, 2002	8A; STS-110	Basic central structure, Mobile transporter (MT)
	June 5, 2002	UF-2; STS-111	MPLM Mobile Base (MBS)
	October 7, 2002	9A; STS-112	First segment right side, CETA
	23 November 2002	Flight 11A; STS-113
2003	March 1, 2003	Flight ULF1; STS-114
	May 23, 2003	Flight 12A; STS-115
	July 24, 2003	Flight 12A.1; STS-116
	October 2, 2003	Flight 13A; STS-117
	November, 2003	Flight 13A.1; US Space Shuttle
2004	January, 2004	Flight 15A; US Space Shuttle
	February, 2004	Flight 10A; US Space Shuttle