WASHINGTON >> All U.S. drone operators would for the first time have to prove they understand aviation regulations under broad legislation introduced Wednesday in the Senate.

A bill setting policy for the Federal Aviation Administration contains several new drone provisions, including a requirement for unmanned fliers to pass an online test, according to summaries of the legislation released by the Senate Commerce, Science and Transportation Committee.

The measure is one of several provisions designed to improve drone safety following a year of record reports of unmanned aircraft flying too close to traditional planes and helicopters. The bill would also beef up FAA’s enforcement of drone violations, require safety features on drones for the first time and fund programs to intercept wayward drones near airports.

While the FAA started this year to require all drone operators to register with the agency, there’s no test to ensure they understand restrictions, such as a ban on most flights within 5 miles of an airport.

The bill also calls for the government to standardize the way airlines disclose fees for basic services like checked bags, seat assignments and ticket changes so that passengers can more easily comparison-shop the full cost of flights.

The bill would require the Department of Transportation to develop a way to display fees that’s easy for consumers to understand and require that airlines and ticket agents use the system. A report last year by the committee’s Democratic staff found that airline fees, especially for things like ticket cancellations or changes, are often hidden from consumers while shopping fares online or disclosed in lengthy paragraphs of tiny typeface that’s difficult to read.

Airlines would also have to return fees for bags that are lost or delayed more than six hours after the arrival of a domestic flight, and more than 12 hours after the arrival of an international flight under the bill. Airlines would also be required to automatically refund fees for services purchased but not received by passengers.

The Senate bill does not include a controversial provision passed by a House committee that would transfer control of U.S. air-traffic operations to a nonprofit corporation. The House version of the FAA bill, which passed the Transportation and Infrastructure Committee on a partisan vote, wasn’t brought before the full body after lawmakers in both parties said they might not support the air-traffic provision.

The Senate is proposing that its bill would govern FAA policy until Sept. 30, 2017, an unusually short duration for legislation setting agency policy and funding levels. If that version of the bill passed, it would give lawmakers another opportunity to address the FAA’s air-traffic division next year.

Bloomberg News and the Associated Press contributed to this report.