§ 50.5 Liability for the tax.
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Liability for tax attaches to any person engaged at any time during the taxable year in hydraulic mining in the area identified in paragraph (a) of § 50.2, if the debris from such mining operations is in whole or in part restrained by any of the debris dams or works constructed by the California Debris Commission.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.