49 CFR 172 Special Provision 14 (Numeric Codes)

These provisions are multi-modal and apply to bulk and non-bulk packagings.

Code	14
Description	Motor fuel antiknock mixtures are: a. Mixtures of one or more organic lead mixtures (such as tetraethyl lead, triethylmethyl lead, diethyldimethyl lead, ethyltrimethyl lead, and tetramethyl lead) with one or more halogen compounds (such as ethylene dibromide and ethylene dichloride), hydrocarbon solvents or other equally efficient stabilizers; or b. tetraethyl lead.
HazMat with this Code	UN 3483 - Motor fuel anti-knock mixture, flammable UN 1649 - Motor fuel anti-knock mixtures