Mechanical Code…
In a building, an area accessible by crawling, having a clearance less than human height, for access to plumbing or wiring, storage, etc.
(Uniform Mechanical Code® 205.0)
Building Trades Resource
Mechanical Code…
In a building, an area accessible by crawling, having a clearance less than human height, for access to plumbing or wiring, storage, etc.
(Uniform Mechanical Code® 205.0)