DOT hearing requirements To pass your hearing test, you must be able to hear a "forced whisper" using your better ear when you're 5 feet from the examiner, with or without a hearing aid.

DOT and HHS have been investigating alternative drug-testing methods for years. In 2004, HHS asked for comments on directly observed alternative testing methods: oral fluid, hair, and sweat testing.

Among benefits for trucking companies of oral testing, DOT said, are that it’s generally cheaper than urine testing (DOT estimates between $10 and $20 cheaper per test versus urine).