No salvage of materials shall be permitted while demolition is in progress on any building, structure, falsework, or scaffold more than three stories high or the equivalent height for which a permit is required under subdivision (c) of Section 6500.
For this purpose salvage does not include removal of material from premises solely for the purpose of clearing the area to facilitate the continuation of the demolition.
Source:
Section 6401.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=LAB§ionNum=6401.5..