34.—(1) Where paragraph (2) is complied with, nothing in these Regulations prevents the showing and using at trade fairs, exhibitions and demonstrations for the marketing of pyrotechnic articles of a pyrotechnic article which does not comply with Part 3.

(2) While a pyrotechnic article within paragraph (1) is being shown or used a clear and visible sign must indicate—

(a)the name and date of the trade fair, exhibition or demonstration;

(b)that the pyrotechnic article does not conform with Part 3; and

(c)that the pyrotechnic article is not for sale, until brought into conformity with the Regulations.