Regulation 81 of the Principal Regulations is amended as follows:(a) by inserting in subregulation (1)(a)(i) ", other than an article," after "receptacle" ;(b) by inserting in subregulation (1)(a)(ii) ", other than an article" after "receptacle" ;(c) by omitting subregulation (2) and substituting the following subregulation:(2) However, a load containing an aggregate quantity of dangerous goods of less than 2 000 that consists only of the following dangerous goods is not a load that must be placarded:(a) dangerous goods that are packed in limited quantities;(b) the following dangerous goods:(i) fireworks that are bon bons, party poppers or sparklers;(ii) domestic smoke detectors containing radioactive material;(iii) lighters or lighter refills containing flammable gas;(iv) fire extinguishers with compressed or liquefied gas, up to a net mass of 23kg;(c) a combination of the dangerous goods referred to in paragraphs (a) and (b) .