(1) No unnecessary combustible material shall be allowed within the enclosure, and as far as possible all necessary combustible material , f i lm and other l ike materials when not in use, shall be kept, in fire -proof receptacles suitable for the purpose.
(2) No smoking shall at any t ime be permitted, within the enclosure and placard shall be prominently exhibited both inside and outside the enclosure to the effect that smoking is prohibited.
(3) The enclosure and the engine room if any shall be inaccessible to the public.
(4) No smoking shall be allowed in the rewinding room; and fi lms which are not in use shall be stored in metal containers and no combustible matter shall be kept inside the rewinding room.
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