What authority must approve the pumps used to transfer gas from underground tanks?

The correct answer is the Board of Standards and Appeals, as this authority is responsible for overseeing and ensuring compliance with safety standards and regulations relevant to equipment such as fuel pumps in gas stations. This board typically reviews and approves equipment installations to ensure they meet local and state codes, which include safety, environmental, and operational considerations.

The Environmental Protection Agency focuses more broadly on environmental protection practices and regulations rather than specific equipment approvals for gas stations. The Occupational Safety and Health Administration primarily oversees workplace safety and health regulations rather than directly governing fuel transfer equipment. The Department of Transportation pertains to transportation systems and regulations but does not have jurisdiction over the operational standards of fuel pumps at gas stations. Thus, the authority that specifically addresses the approval of pumps for transferring gas is the Board of Standards and Appeals.