for regulating substances toxic to the aquatic environment and allow use of the criteria in the IMDG Code if a listed material does not meet the criteria for a marine pollutant. PHMSA periodically updates this list based on changes to the IMDG Code and evaluation of listed materials. Packaging Requirements for Water-Reactive Materials Transported by Vessel PHMSA proposes various amendments to packaging requirements for vessel transportation of water-reactive substances consistent with requirements in the IMDG Code. The amendments include changes to the packaging requirements to require certain commodities to have hermetically sealed packaging and to require other commodities—when packed in flexible, fiberboard or wooden packagings—to have sift-proof and water-resistant packaging or packaging fitted with a sift- proof and water-resistant liner. Hazard Communication Requirements for Lithium Batteries PHMSA proposes to revise hazard communication requirements for shipments of lithium batteries consistent with changes adopted in the 19th Revised Edition of the UN Model Regulations. Specifically, PHMSA proposes to adopt a new lithium battery label in place of the existing Class 9 label; to amend the existing marking requirements for small lithium battery shipments in §173.185(c) to incorporate a new standard lithium battery mark for use across all modes; to delete the documentation requirement in §173.185(c) for shipments of small lithium cells and batteries; and to require the lithium battery mark be applied to each package containing small lithium cells or batteries contained in equipment when there are more than four lithium cells or two lithium batteries installed in the equipment or where there are more than two packages in the consignment. Engine, Internal Combustion/Machinery, Internal Combustion PHMSA proposes to harmonize the HMT proper shipping names utilized for the transportation of engines and machinery containing engines with those in the UN Model Regulations. Additionally, PHMSA proposes harmonization with the IMDG Code for domestic vessel shipments of engines, internal combustion and machinery containing combustion engines. Under the proposals in this NPRM, the existing “Engine, internal combustion” entries would be assigned their own From here to there: Topics in Transportation UN numbers and hazard class based on the type of fuel (e.g. a flammable liquid powered engine is assigned a proper shipping name with a Class 3 designation). Existing requirements and exceptions for the transportation of engines and machinery containing engines transported by road, rail and aircraft would remain unchanged. PHMSA is, however, proposing to harmonize the transportation requirements for transportation by vessel, which includes varying degrees of hazard communication based on the type of fuel, amount of fuel and capacity of the fuel tank. Aerosols Although the 19th Revised Edition of the UN Model Regulations includes changes to the large packaging requirements for waste aerosols, including a notable change to the packing group (PG) performance level required for large packagings transporting waste aerosols—from PG III to PG II. However, the HMR do not currently authorize the use of large packagings for aerosols. Therefore, PHMSA is not proposing any changes to the current HMR requirements for large packagings for waste aerosols. However, PHMSA is proposing to revise the definition of “aerosol” to clarify that it is an article. Currently under the HMR, an aerosol is considered to be an article and therefore the use of inner packagings in a combination package is not necessary. However, practice has shown that an aerosol is often mistaken for the inner packaging of a combination packaging, including both the substance dispensed (liquid, paste or powder) and the propellant gas itself. A copy of the HM-215N NPRM is available for download at the following link: http://www.phmsa.dot.gov/staticfiles/PHMSA/ DownloadableFiles/Files/HM_215N_NPRM_Signed_Copy.pdf Spray October 2016 Spray 31
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