Section 9631.

Cal. Health and Safety Code - HSC § 9631.
in effect
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Where any wall is constructed against a bank of earth, rock, or other porous material, or where crypts are adjacent to an outside building wall below grade, the wall shall be adequately waterproofed. Before backfilling, a waterproofed wall shall have a protection board placed against it to prevent damage to the waterproofing during backfilling.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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