Again, you have to read the regulations I gave you and the equipment sectionunder the HTA. All things you need to know are covered.
Tires are covered therein.
Regulations and offences, tires
70. (1) The Lieutenant Governor in Council may make regulations,
(a) prescribing the standards and specifications of tires or any class or classes thereof in use on vehicles or any class or classes thereof;
(b) prescribing classes of tires;
(c) prescribing the standards and specifications of used or retreaded tires offered for sale and prohibiting the sale of the tires or any type thereof that do not comply with the standards and specifications therefor prescribed by the regulations or that are not marked in accordance with the regulations;
(d) providing for and requiring the identification and marking of used or retreaded tires;
(e) prohibiting the use of any type of tire on a highway at any time or during any period of the year and designating the period;
(e.1) exempting any vehicle or person or class or type of vehicles or class of persons from a prohibition under clause (e) and regulating the use of a type of tire that is otherwise prohibited under clause (e) for the purpose of such exemption, including prescribing the period of the year during which and geographic areas where the exemption applies and other conditions and circumstances that must exist for the exemption to apply;
(f) prescribing procedures for examining tires for the purpose of determining whether the prescribed standards and specifications have been met;
(g) regulating installation and placement of tires to be used on vehicles or any class or classes thereof;
(h) regulating combinations of tires installed on vehicles or any class or classes thereof
So are bumpers.
Regulations re bumpers
81. The Lieutenant Governor in Council may make regulations requiring any type or class of commercial motor vehicle or trailer to be equipped with rear bumpers and prescribing the location and means of attachment of the bumpers and prescribing the specifications for the bumpers.