The Transportation Security Administration (TSA) recently said that its new passenger pre-screening pilot effort has begun at Los Angeles International Airport (LAX), the sixth airport that is using the expedited security screening program.

Approved passengers that are American Airlines [AMR] frequent fliers are eligible for the expedited screening benefits at LAX. Those expedited benefits may include not having to remove shoes, 3-1-1 compliant liquids and gels from carry-on bags, belts, light coats and laptops from their carrying bag.

So far 250,000 passengers have moved through the PreCheck lanes at the five existing airport locations, TSA said.

PreCheck allows certain frequent fliers and members of Customs and Border Protection’s trusted traveler programs to apply to go through a vetting process to be part of the program. Approved passengers are eligible to go through the PreCheck lanes at pilot locations but are still subject to being directed to the regular lanes as part of random security measures.