The rules and regulations formulated by the board applying to the inspection of unfired pressure vessels may be modified by the board to reduce or extend the interval between required inspections where the contents of the vessel or the material of which it is constructed warrant special consideration.
RCW 70.79.260
Inspection—Frequency—Modification by rules.
1951 c 32 s 24.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.