EXEMPTION: | This requirement does not apply to screw conveyors where there are drop or hinged bottom sections that cannot remain airtight. |
You must design covers for screw conveyors that are:
Wash. Admin. Code § 296-806-42524
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 04-14-028, § 296-806-42524, filed 6/29/04, effective 1/1/05.