Title 49 of the Code of Federal Regulations contains a codification of documents of general applicability and future effect relating to Transportation. The details of why, when, and how containers used for packaging hazardous materials are tested and certified are found in Parts 100 to 185. The primary information relative to small package plastic containers is in Part 173 Shippers - general requirements for shipments and packagings and Part 178 Specifications for packagings. This link will take you to the Regulations, in their entirety. If you have any questions concerning the packaging of hazardous chemicals and in determining if you are in compliance with Title 49 of the Code of Federal Regulations, contact us. Click Here To View DOT 49 CFR With the issuance of DOT Special Permit 14656, chemical packagers can now package 70% Nitric Acid in a 2.5 liter plastic bottle without an overpack, in full compliance with 49 CFR, Part 173.158. The 2.5 liter bottle, manufactured with PPQ resin, provides the chemical packager numerous benefits over glass including safety, high-purity, ease of handling, reduced inventory, and smaller package footprint.