S.L. 33.3 чл. 8Prohibited substances.

It shall not be lawful for any person to manufacture, store, convey or discharge any firework which contains any of the following substances:

(a) any admixture of potassium chlorate and sulphur or any chlorates in an admixture with sulphur;

(b) an admixture of potassium chlorate with phosphorus or any chlorate in an admixture with phosphorus;

(c) nitro-glycerine gelignite, TNT or other similar high explosive; or

(d) ammonium perchlorate;

(e) an admixture of potassium chlorate and metals in any flash composition;

(f) an admixture of potassium chlorate and charcoal (H3):

Provided that, with reference to paragraph (e), the use of potassium chlorate in flash mixtures shall be prohibited.