Who issues the Gas Free Certificate?

• A. The Insurance Company
• B. The Captain
• C. The Port Authority
• D. Marine Chemist

Answer: (D)

Gas testing for enclosed spaces and the certification that follows. The Marine Chemist is the professional who conducts the atmospheric testing, verifies proper ventilation, and issues the Gas Free Certificate when the space meets safety limits. This certificate confirms it is safe to enter for maintenance or inspection after testing. The captain may authorize entry, and authorities or insurers may require compliance, but they do not issue the Gas Free Certificate. The other options don’t have authority to issue this certification.