Ask X3What does 49 CFR 173.307 (Exceptions for compressed gases) require?
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According to 49 CFR 173.307, specific materials are exempt and not subject to the requirements of the subchapter. As a motor carrier, you do not need to follow the subchapter's requirements when transporting the following items:
1. Carbonated beverages.
2. Tires when they are inflated to pressures no higher than their rated inflation pressures (note that air transport has additional conditions under § 175.8(b)(4)).
3. Balls used for sports.
4. Refrigerating machines (including air conditioners and dehumidifiers) and their components (such as precharged tubing) that contain specific limits:
* 12 kg (25 pounds) or less of a non-flammable, non-toxic gas.
* 12 L (3 gallons) or less of ammonia solution (UN2672).
* 12 kg (25 pounds) or less of a flammable, non-toxic gas (provided it is not offered or transported by air).
* 20 kg (44 pounds) or less of a Group A1 refrigerant per ANSI/ASHRAE Standard 15 (provided it is not offered or transported by air or vessel).
* 100 g (4 ounces) or less of a flammable, non-toxic liquefied gas.
5. Manufactured articles or apparatuses (other than light bulbs) containing no more than 100 mg (0.0035 ounce) of inert gas per bulb, provided they are packaged so that the total quantity of inert gas does not exceed 1 g (0.035 ounce) per package.
6. Light bulbs (lamps) that meet the requirements of § 173.11.