16 Additional requirements to be met by approved handler at outdoor
pyrotechnic display involving firings of class 1 category G substances to
heights over 60 m
Regulation 43(a) of the principal regulations is amended by revoking
subparagraph (ii), and substituting the following subparagraph and words:
"(ii) for its ability to withstand the ignition of an upside-down
shell within the mortar tube without producing any hazardous fragments;---and
in no case is the mortar tube to be of metal or PVC; and"."