49 CFR 172 Special Provision 12 (Numeric Codes)

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

Code	12
Description	In concentrations greater than 40 percent, this material has strong oxidizing properties and is capable of starting fires in contact with combustible materials. If appropriate, a package containing this material must conform to the additional labeling requirements of §172.402 of this subchapter.
HazMat with this Code	UN 2015 - Hydrogen peroxide, stabilized or Hydrogen peroxide aqueous solutions, stabilized with more than 60 percent hydrogen peroxide UN 2014 - Hydrogen, peroxide, aqueous solutions with more than 40 percent but not more than 60 percent hydrogen peroxide (stabilized as necessary)