Regulation 53 of the Principal Regulations is amended as follows:(a) by omitting from subregulation (1) "motor vehicle" and substituting "light motor vehicle" ;(b) by omitting from subregulation (1)(b) "1972; and" and substituting "1972." ;(c) by omitting paragraph (c) from subregulation (1) ;(d) by omitting from subregulation (3) "motor vehicle" first occurring and substituting "light motor vehicle" ;(e) by omitting from subregulation (4) "vehicle" and substituting "light motor vehicle" .