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MOTOR VEHICLE SAFETY ACTMotor Vehicle Safety RegulationsStandard 121
Air Brake Systems (Standard 121) 121. (1) Every motor vehicle that is equipped with an air brake system and to which Technical Standards Document No. 121, Air Brake Systems (hereafter referred to as TSD 121) applies shall conform to TSD 121, as amended from time to time.(2) When a truck or bus is equipped with a front brake pressure limiting valve, that valve shall be automatic and shall operate while the service brakes are applied. Technical Standards Document No. 121 (3) Every antilock brake system malfunction indicator referred to in section S5.1.6.2 of TSD 121 shall display the corresponding symbol shown for this indicator in Table II to section 101 of this Schedule, and all words accompanying the symbols shall be displayed in both official languages. (4) Notwithstanding section S5.2.3.3(a) of TSD 121, in addition to meeting the requirements of section S5.2.3.2 of TSD 121, each trailer and each trailer converter dolly manufactured before March 1, 2010 shall be equipped with an external antilock malfunction indicator lamp that meets the requirements of paragraphs S5.2.3.3(b) to (d). (5) The test of the parking brake static retardation force that is referred to in section S5.6.1 of TSD 121 must be conducted in both the forward and rearward directions. (6) This section expires on January 1, 2010. Established by the CONSOLIDATED REGULATIONS OF CANADA, 1978.amended by SOR/78-351 17 April, 1978 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Subsection 120(1) of Schedule IV; and subsection 120(10) of Schedule IV. SOR/79-547 26 July, 1979 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Subsection 120(1) of Schedule IV. SOR/79-940 6 December, 1979 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Section 120 of Schedule IV is renumbered as section 121. SOR/80-638 5 August, 1980 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Subsection 121(1) of Schedule IV; paragraph 121(3)(c) of Schedule IV; paragraph 121(4)(a) of Schedule IV; paragraph 121(5)(b) of Schedule IV; subsection 121(8) of Schedule IV; subsection 121(9) of Schedule IV preceding paragraph (b); and subsection 121(10) of Schedule IV. PLEASE NOTE THAT THE MOTOR VEHICLE SAFETY ACT IS NOW CHAPTER M-10 OF REVISED STATUTES OF CANADA, 1985. SOR/92-250 7 May, 1992 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Revoked and replaced. SOR/94-374 26 May, 1994 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Subparagraph 121(4)(b)(ii) of Schedule IV to the French version. SOR/94-670 25 October, 1994 pursuant to sections 4 and 7 of the Motor Vehicle Safety Act Subsection 121(4) and 121(9) of Schedule IV of the French version. PLEASE NOTE THAT THE MOTOR VEHICLE SAFETY ACT IS NOW CHAPTER 16 OF THE STATUTES OF CANADA 1993. SOR/95-147 21 March, 1995 pursuant to subsection 3(2) and sections 4, 5, 7, 9, 10 and 11 of the Motor Vehicle Safety Act, effective April 12, 1995 The expression «châssis» is replaced by «châssis-cabine» in subparagraphs 121(4)(c)(i) and (ii), paragraph 121(4)(f), paragraph 121(4)(g), subsection 121(6), subsection 121(12), paragraph 121(16)(a), subsection 121(26) preceeding paragraph (a), paragraph 121(26)(d), and subsection 121(27) preceeding paragraph (a) in the French version. SOR/96-89 23 January, 1996 pursuant to section 5 and subsection 11 (1) of the Motor Vehicle Safety Act, effective May 31, 1996 Section 121 of Schedule IV by adding subsections (3.1) to (3.3); subparagraph 121 (29) (h) (v) of Schedule IV; paragraph 121 (29) (n) of Schedule IV; and subparagraph 121 (32) (g) (iv) of Schedule IV. SOR/97-200 15 April, 1997 pursuant to section 5, subsection 11(1) and section 12 of the Motor Vehicle Safety Act Paragraph 121(4)(f) of Schedule IV; subsection 121(15) of Schedule IV; paragraphs 121(21)(a) and (b) of Schedule IV; and paragraph 121 (22) of Schedule IV. SOR/97-421 28 August, 1997 pursuant to subsection 5(1) and section 11 of the Motor Vehicle Safety Act, in force August 28, 1997 Paragraph 121(29)(d) of Schedule IV. SOR/99-357 26 August, 1999 pursuant to section 5 and subsection 11(1) of the Motor Vehicle Safety Act, in force April 1, 2000 Section 121 of Schedule IV is replaced. SOR/2002-55 31 January 2002 pursuant to section 5 and subsection 11(1) of the Motor Vehicle Safety Act, comes into force February 13, 2003.Subsection 121(2) of Schedule IV is replaced. SOR/2005-42 February 15 2005 pursuant to section 5 and subsection 11(1) of the Motor Vehicle Safety Act, into force February 15 2005. The expression "March 1, 2005" is replaced with the expression "January 1, 2010" in subsection 121(6) of Schedule IV.
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