All aircraft used for the scattering of cremated human remains shall be validly certified by the Federal Aviation Administration. All boats or vessels used for the scattering of cremated human remains shall be registered with the Department of Motor Vehicles or documented by a federal agency, as appropriate. The certification or registration shall be available for inspection by the bureau.
Source:
Section 7672.3, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=7672.3..