This online course provides function-specific training required by 49 CFR 172.704(a)(2).
US DOT also requires that general awareness and cargo security awareness training be part of hazmat employees' initial and recurrent training. Hazmat safety training and security plan training are required too, when applicable (see 49 CFR 172.704(a)(1)–(5)).
For "hazmat employees" with no previous hazmat training experience:
If lithium batteries are the only
hazardous materials you ship, we recommend the more comprehensive Shipping Lithium Batteries
If you ship lithium batteries and
other hazardous materials, we recommend Hazmat Ground Shipper Certification (DOT)
for a fuller perspective on US DOT's 49 CFR Hazardous Materials Regulations (HMR).