CHMM - Certified Hazardous Materials Manager Shipping and Transporting Hazmat Questions and Answers — Questions and Answers
Question 1: A shipper is preparing a road transport vehicle with several non-bulk packages of hazardous materials, all of which fall under Placarding Table 2. The shipment consists of 500 lbs of Class 8 (Corrosive) material and 600 lbs of Division 4.1 (Flammable Solid) material. According to 49 CFR §172.504, which placarding action is required for the vehicle?
- Placard for both Class 8 and Division 4.1. (Correct answer)
- Placard only with a DANGEROUS placard.
- No placards are required because each material is under 1,001 lbs.
- Placard only for the material with the greatest weight, which is Division 4.1.
Correct answer: Placard for both Class 8 and Division 4.1.
According to 49 CFR §172.504(c), placarding is required for materials in Table 2 when the aggregate gross weight of all hazardous materials is 1,001 lbs (454 kg) or more. In this scenario, the total weight is 500 + 600 = 1,100 lbs. Since the aggregate weight exceeds the 1,001 lb threshold, placards are required for each hazard class. The DANGEROUS placard could be an option, but when separate placards are listed as an option, it is also a correct action. However, the most specific and required action when the individual placards are available is to use them.
Question 2: A hazmat employee receives initial DOT hazardous materials training on June 1, 2024. According to 49 CFR §172.704, what is the latest date by which this employee must complete recurrent training to remain in compliance?
- Within 90 days of a significant regulatory change.
- June 1, 2026
- June 1, 2027 (Correct answer)
- December 31, 2027
Correct answer: June 1, 2027
49 CFR §172.704(c)(2) mandates that hazmat employees must receive recurrent training at least once every three years. The three-year period begins on the anniversary of the last training date. Therefore, three years after June 1, 2024, is June 1, 2027.
Question 3: When preparing a shipping paper for a hazardous material, which of the following is NOT a required part of the basic description as specified in 49 CFR §172.202?
- The UN identification number
- The proper shipping name
- The hazard class
- The UN packaging code (Correct answer)
Correct answer: The UN packaging code
As defined in 49 CFR §172.202, the basic description of a hazardous material on a shipping paper must include, in sequence, the UN/NA identification number, the proper shipping name, the hazard class, and the packing group (if applicable). The UN packaging code (e.g., 1H1/Y1.8/100) is a marking on the package itself, not a required element of the basic description on the shipping paper.
Question 4: A shipper is loading a truck with packages of Class 8 (Corrosive) liquids and Division 5.1 (Oxidizer) solids. According to the Segregation Table for Hazardous Materials in 49 CFR §177.848, which of the following is true?
- These materials can be loaded together without restriction.
- The letter 'X' in the table indicates they must not be loaded together. (Correct answer)
- The letter 'O' in the table indicates they must be separated by a minimum distance of 10 feet.
- These materials are compatible and can be loaded adjacent to one another.
Correct answer: The letter 'X' in the table indicates they must not be loaded together.
The Segregation Table in 49 CFR §177.848 indicates the requirements for separating different classes of hazardous materials. The intersection of Class 8 and Division 5.1 in the table contains the letter 'X', which means these materials may not be loaded, transported, or stored together in the same transport vehicle.
Question 5: Which of the following is a key responsibility of the shipper when offering a hazardous material for transport?
- Ensuring the driver has the correct commercial driver's license (CDL) endorsement.
- Providing placards to the carrier for any quantity of hazardous material.
- Classifying, packaging, marking, labeling, and documenting the shipment correctly. (Correct answer)
- Verifying the carrier's insurance and operating authority.
Correct answer: Classifying, packaging, marking, labeling, and documenting the shipment correctly.
The shipper (offeror) is fundamentally responsible for all aspects of preparing the hazardous material shipment. This includes correctly classifying the material's hazards, selecting and preparing the appropriate packaging, applying the correct marks and labels, and preparing accurate shipping papers. While the carrier is responsible for placarding and driver qualifications, the initial and primary compliance responsibility for the shipment's preparation lies with the shipper.
Question 6: You are examining a UN specification marking on a fiberboard box: 4G/Y25/S/25/USA/M1234. What does the letter 'Y' in this marking signify?
- The package is suitable for air transport only.
- The package was manufactured in the second quarter of the year.
- The package is suitable for Packing Group II and III materials. (Correct answer)
- The package is designed for solids that are yellow in color.
Correct answer: The package is suitable for Packing Group II and III materials.
In a UN specification marking, the letter following the packaging identification code indicates the packing group(s) for which the packaging has been tested and approved. 'X' is for Packing Groups I, II, and III; 'Y' is for Packing Groups II and III; and 'Z' is for Packing Group III only. Therefore, 'Y' signifies the packaging is approved for materials of medium and minor danger.
CHMM - Certified Hazardous Materials Manager Shipping and Transporting Hazmat Questions and Answers
A shipper is preparing a road transport vehicle with several non-bulk packages of hazardous materials, all of which fall under Placarding Table 2.
The shipment consists of 500 lbs of Class 8 (Corrosive) material and 600 lbs of Division 4.1 (Flammable Solid) material.
According to 49 CFR §172.504, which placarding action is required for the vehicle?