NPRM’s HM-233B and HM-238
Notice of Proposed Rulemaking: HM-233B Revisions of Special Permits Procedures
Special permits allow for variances in the regulations as a way to quickly, effectively and safely integrate new technologies for the hazardous materials industry and to also address unique or infrequent transport situations.
This NPRM proposes to clarify existing regulations while requiring additional information that will allow PHMSA to evaluate the level of safety that will be achieved. PHMSA believes it is essential to understand and analyze the risks of a special permit application along with potential failure modes. Failure Mode and Effect Analysis (FMEA) will be an example of acceptable documentation to substantiate the alternative request.
In parts 107.105 of 49 CFR, PHMSA will be looking for additional information on:
- Shipping and incident history in addition to experience relating to the initial application, modification, or renewal of a special permit.
- Identification of increased risks to safety or property that may result is a special permit is granted or renewed.
As this rulemaking will request additional and detailed information in the special permit process, the proposed change is seen as increasing safety and environmental protections.
The comment period for HM-233B remains open until August 26, 2010.
Notice of Proposed Rulemaking: HM-238 Requirements for the Storage of Explosives During Transportation
PHMSA and the Federal Motor Carrier Safety Association (FMCSA) propose to use the National Fire Prevention Association standard 498 as the Federally approved standard for the construction of safe havens used for unattended explosives storage during transport.
The NPRM proposes to amend Part 171 indicating NFPA 498 as the standard and adding a new paragraph (k) to section 177.835 to indicate that Division 1.1, 1.2 and 1.3 explosives may be left unattended in a safe haven meeting the requirements of NFPA 498.
The “safe haven” will promote the safe storage of explosives in a manner that protects the environment from an unintentional release. The adoption of the NFPA standard is intended to provide a clear consistent and measurable Federal requirement for the development and operation of safe havens.
The comment period on HM-238 remains open until September 27, 2010.
Read the full text on these and other NPRM’s at:
http://www.phmsa.dot.gov/hazmat/regs/rulemaking/nprm-anprm




