Can hazardous materials labels or placards be oriented other than square-on-point?
Although recommended when feasible, there is no requirement to orient a label square-on-point on a package. Some small packages are too small to permit square-on-point orientation, and many packages may be transported in any of several orientations. In other instances, labels may be attached to tags, rendering "square-on-point" meaningless.
For placards, 49 CFR §172.516(c)(5) mandates a square-on-point orientation (words or identification numbers displayed horizontally).
When must a white-bottom COMBUSTIBLE placard be used to display an identification number?
According to 49 CFR §172.332(c)(4), it must be used during transportation by rail and may (permissive) be used during transportation by highway.
What does "n.o.s." mean?
"Not otherwise specified" (49 CFR §171.8), which means the chemical is not listed by name in the Hazardous Materials Table, 49 CFR §172.101.
How often must a hazmat employee receive recurrent training?
Recurrent training is required at least once every three years.
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