Articles which are not clearly upholstered furniture or bedding, as described in the act, may be declared exempt from the provisions of the act and these regulations, except that when exempted articles are labeled they become subject to the act and the regulations and must be labeled in conformity therewith. No questionable articles shall be considered as exempt, however, until the articles or photographs thereof, have been submitted to the Bureau for inspection and final authority for exemption has been granted.