StacksVerified U.S. regulatory reference

46 CFR §151.03-25

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
A fitted single screen of corrosion-resistant wire of at least 30 by 30 mesh or two fitted screens, both of corrosion-resistant wire, of at least 20 by 20 mesh spaced not less than one-half inch or more than 1 1/2 inches apart.