Which factor governs whether to fill by weight or by volume?

• A. Manufacturer's recommendation.
• B. Time of day.
• C. Regulations at the local level.
• D. Applicant's preference.

Answer: (C)

Regulations at the local level determine whether propane fills are by weight or by volume, because measurement standards and safety rules vary by jurisdiction. Local rules specify the approved method and how the quantity must be verified and reported. While a manufacturer might offer guidance, it doesn’t override these local requirements. Time of day or the applicant’s personal preference aren’t factors in establishing the legal filling method.