The designations A, B, C, D, and E grades of cargo refer to the __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — flash point range and Reid vapor pressure index of petroleum products
Per 46 CFR 30.10-15, flammable and combustible liquid grades A through E are officially classified according to their specific flash point ranges and Reid vapor pressure indices.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.