Skull and Cross Bones
Inhalation Hazards – TDG Marking & Documentation

Man Wearing Respirator

Changes in Special Provision 23

One aspect of the International Harmonization amendment (SOR/2017-137) of the Canadian Transportation of Dangerous Goods Regulations (TDGR) that did not receive a lot of attention is the change in Special Provision 23. This special provision (SP) deals with the assignment of markings on containers and descriptions on shipping documents for entries related to goods which exhibit inhalation toxicity. Although the basic concept for classification remains the same- i.e. gases in Class 2.3 and Class 6.1 with associated inhalation toxicity. The majority of the latter are in PG I, but there are several PG II entries invoking SP23).

Marking – Keep It Simple?

A significant difference is the change in wording applied to means of containment (MoC). Following the transition period, markings required under SP23 must read “inhalation hazard” for all entries except UN 1005 (anhydrous ammonia). This eliminates the previous options of either “toxic by inhalation” or “toxic-inhalation hazard” (TBI or TIH).

UN1005 retains the previous wording “Anhydrous Ammonia, Inhalation Hazard” when the option of using the ammonia placard (rather than Class 2.3) is chosen. However small MoC of UN1005 will use the standard Class 2.3 label and “inhalation hazard” wording.

Size Matters

Letter Size
The new SP23 simplifies things somewhat by referencing Continue Reading…

A Reminder – US Shipping Description Changes Becoming Mandatory for 2013

We’ve turned our clocks backwards, started our holiday preparations, and maybe even bought new calendars for 2013. But there’s one other thing that should be on our minds for the New Year, at least for shippers in the United States. We must make sure that our shipping descriptions are in order.

In 2006, a Final Rule, Docket No. PHMSA–06–25476, known as HM-215I, was issued by the Pipelines and Hazardous Materials Safety Administration (PHMSA). The goal of this rule was to bring the US Hazardous Materials Regulations (HMR) of Title 49 of the Code of Federal Regulations (49 CFR) into line with the current UN Recommendations for Transport of Dangerous Goods. One major change was that the shipping description order, as described in 49 CFR section 172.202(a), would be rearranged to reflect the international standard.

Originally, the shipping description order was prescribed as:

  • Shipping name, hazard class, identification number and packing group (if applicable)

However, HM-215I changed this order to:

  • Identification number, shipping name, hazard class, and packing group (if applicable)

PHMSA recognized that making this change would take some time, and granted a six-year transition period. After all, making this change would include retraining workers who prepare or read shipping papers, reprogramming computerized document systems, and rewriting standard Continue Reading…