When a Load Needs Placards: Table 1 and 1,001 Pounds

Table 1: any amount

49 CFR 172.504(a) is the general rule. Except as otherwise provided in the subchapter, each bulk packaging, freight container, unit load device, transport vehicle, or rail car containing any quantity of a hazardous material must be placarded on each side and each end with the placards specified in Table 1 and Table 2 of that section. "Any quantity" is the starting sentence. The 1,001-pound idea is an exception that comes later, and it is narrower than drivers remember.

Table 1, as printed in 172.504(e), is the list that does not get the small-quantity placard exception. The categories named there are: Division 1.1, 1.2, and 1.3 explosives; Division 2.3 poison gas; Division 4.3 dangerous when wet; organic peroxide, Type B, liquid or solid, temperature controlled; Division 6.1 material poisonous by inhalation; and Class 7 radioactive material when the Yellow III label applies. The table's note also requires RADIOACTIVE placards for all shipments of unpackaged LSA-I or SCO-I, for shipments required by 173.427, 173.441, and 173.457 to be operated under exclusive use, and for closed vehicles used in accordance with 173.443(d). If your material is one of those categories, stop looking for a pound threshold. There isn't one in 172.504(c) for Table 1.

A tote, a drum, or a box can be Table 1. The package shape is not the test. The hazard class and division on the shipping paper are the test. "It is not a tanker" does not move a Division 2.3 shipment into the Table 2 exception. Read the basic description before you decide which table you are in. If you cannot read the class, you are not ready to decide about placards, and you are not ready to leave.

Table 2: 1,001 pounds aggregate

Table 2 in 172.504(e) includes the categories drivers see more often: Divisions 1.4, 1.5, and 1.6; Division 2.1 flammable gas; Division 2.2 non-flammable gas; Class 3 flammable liquid; combustible liquid; Divisions 4.1 and 4.2; Division 5.1 oxidizer; other organic peroxides; Division 6.1 other than poison-by-inhalation; Class 8 corrosive; and Class 9, with a pointer to 172.504(f)(9). Division 6.2 is listed with placard name "NONE." Do not memorize a shortened personal list and drop a class. Open the table when the paper says a class you do not haul every week.

The exception is 172.504(c). Except for bulk packagings and hazardous materials subject to 172.505, when Table 2 materials are transported by highway or rail, placards are not required on a transport vehicle or freight container which contains less than 454 kg (1,001 pounds) aggregate gross weight of those Table 2 materials. The regulation's own parentheses say 1001 pounds. People who say "1,000 pounds" are off by a pound, and at the line that pound is the difference between the exception and no exception. Aggregate gross weight means you add the shipment weights. It is not the weight of the heaviest single drum if the others are on the same vehicle.

Two limits on the exception are in the same sentence. Bulk packagings do not get it. A bulk package is placarded under the general rule even when someone would like to call the quantity small. Materials subject to 172.505 do not get it either. Section 172.505 is the subsidiary-placard section. If it applies, the less-than-1,001-pound sentence is not your exit. This page will not coach a subsidiary-hazard argument. If the shipping paper or the applicable special provision points at 172.505, placard for that requirement.

172.504(d) is a different exception, for empty packages. A non-bulk packaging that contains only the residue of a Table 2 material need not be included in the placarding determination, except for materials subject to 172.505. Residue is not "a little left, but we also left a full drum." A full package counts. An empty intermediate bulk container has its own sentence in 172.504(d)(2), tied to 173.29(d). Do not treat a loaded IBC as an empty one.

Class 9 has a domestic exception in 172.504(f)(9). For Class 9, a CLASS 9 placard is not required for domestic transportation, including the portion of international transportation, as 171.8 defines it, which occurs within the United States. A bulk packaging must still be marked with the appropriate identification number on a CLASS 9 placard, an orange panel, or a white square-on-point display, as subpart D requires. That exception is the rule for Class 9. It is not a method for turning a flammable liquid into Class 9, and it does not erase the identification-number mark on a bulk package. Using it as a cover story for a different class is a false shipping paper, not a placard tip. This page stops there.

Other paragraphs in 172.504(f) allow particular substitutions, such as a FLAMMABLE placard in place of COMBUSTIBLE on a cargo tank or portable tank, or displaying only the lowest division number when more than one division placard is required for Class 1 on a transport vehicle. Those are substitutions the section writes out. They are not a general permission to pick the placard you have in the side box. If the paragraph does not name your case, use the placard the table names.

Placards on four sides

172.504(a) says each side and each end. A transport vehicle has two sides and two ends. One placard on the rear door, or two on the rear because the doors are split, does not cover the sides. Placards that are the wrong class, the wrong size, faded to the point they no longer meet the design sections the table cites, or hidden by a tarp or a spare tire, are not "on" the vehicle in any sense an inspector will accept. The design sections are 172.519 through 172.560, and the table points at the specific section for each placard name. This page does not redraw those placards.

172.504(b) covers a mixed non-bulk load that needs more than one Table 2 placard. A freight container, unit load device, transport vehicle, or rail car which contains non-bulk packages with two or more categories of hazardous materials that require different Table 2 placards may be placarded with a DANGEROUS placard instead of the separate placard for each category. The exception to that permission is numerical. When 1,000 kg (2,205 pounds) aggregate gross weight or more of one category is loaded at one loading facility, the placard specified for that category must be applied. DANGEROUS is not a universal substitute, and 2,205 pounds of one category at one facility brings that category's own placard back.

Put the placards on before the wheels move, and take them off when the vehicle no longer contains the material that required them. 172.502 restricts placards displayed when they are not required or permitted. Leaving last week's corrosives placard on a truck that is now hauling lumber is its own violation. This page will not discuss covering, folding, or parking a placard out of an inspector's line of sight. If the load requires the placard, the placard goes on each side and each end. If it does not, the placard comes off.

Shipping papers and emergency response information in reach

Placards without papers are not a complete shipment, and papers in the trailer are not the highway rule. 49 CFR 177.817(a) says a person may not accept a hazardous material for highway transportation, or transport it, unless that person has received a shipping paper prepared under part 172, or the material is excepted from shipping-paper requirements. 177.817(e) is the location rule. The driver and the carrier must keep the paper readily available to, and recognizable by, authorities in an accident or inspection. If it rides with other papers, it is tabbed or placed first. When the driver is at the controls, the paper must be within immediate reach while the driver is restrained by the lap belt, and either readily visible to a person entering the driver's compartment or in a holder mounted on the inside of the driver's door. When the driver is not at the controls, it is in that door holder or on the driver's seat. A folder in the sleeper, a photo roll on a phone that may lock, or a packet in the trailer toolbox fails that sentence.

177.817(f) adds retention. A hazardous-waste shipping paper is kept for three years after the initial carrier accepts the material. For other hazardous materials, the copy is kept for one year after the carrier accepts the material. Each copy must include the date of acceptance by the carrier. Those are retention periods, not a reason to keep the only copy at the office while the truck is on the road. The road copy is the 177.817(e) copy.

Emergency-response information is 49 CFR 172.602. It has to be immediately available, and on the highway it has to be immediately accessible to the driver. The Emergency Response Guidebook is the book most cabs use to meet that duty for the materials it covers. The book meets the duty only if the driver can reach it. A copy zip-tied inside the trailer, or a copy at the terminal, is not accessible during the crash the rule is written for. Match the guidebook page to the material on the shipping paper. A guidebook from a year the carrier cannot identify, missing the pages for the UN number you are hauling, is a gap you fix before departure, not a fine this page is going to invent. No civil penalty dollar amount belongs here. The rule is the location and the content, not a rumor about what the ticket costs.

The initial carrier also has a certification problem under 177.817(b). Do not accept the shipment unless the paper includes the shipper's certification 172.204 requires, with the exceptions that paragraph actually lists, including private carriage and certain bulk cargo-tank shipments. A bill of lading that names a product in plain English and never gives the proper shipping name, the class, and the identification number is not a paper you can placard from. Send it back to the offeror. Guessing a placard from a product nickname is how the wrong diamond goes on the trailer.

The H endorsement is a separate question

Placards and the CDL endorsement are related, and they are not the same sentence. 49 CFR 383.93(b)(4) says an operator must obtain a state-issued endorsement to operate commercial motor vehicles which are used to transport hazardous materials as defined in 383.5. The 383.5 definition is specific. Hazardous materials means any material that has been designated as hazardous under 49 U.S.C. 5103 and is required to be placarded under subpart F of 49 CFR part 172, or any quantity of a material listed as a select agent or toxin in 42 CFR part 73. The endorsement question tracks the placard requirement, plus that select-agent clause. It does not track the word "chemical," a consumer commodity someone misread, or a pallet of windshield wash the shipping paper shows is not a placarded quantity.

383.5 also defines a commercial motor vehicle to include a small vehicle, of any size, that does not meet the Group A or Group B weight thresholds but is used to transport hazardous materials as defined in that section. A pickup that must be placarded is not saved by its weight. Whether part 383 applies to a particular driver still depends on 383.3. This page will not invent an exception list. If you think an exception covers you, read 383.3 against the operation you are actually running. Do not borrow a farm, fire, or military story from a forum.

383.93(c)(4) says the hazardous-materials endorsement is a knowledge test. 383.93(a)(2) says the only endorsements allowed on a commercial learner's permit are passenger, school bus, and tank. The H endorsement is not on that list. A learner's permit is not a hazmat endorsement. The steps to sit for the knowledge test, the background check, and the documents a state asks for are on how to get a hazmat endorsement. This guide will not preview questions, answers, or a study sheet. Using a placard page as a test cheat sheet is the thing the brief forbids, and it would also be a bad way to learn a rule that changes at the shipping paper, not at a quizlet.

A tank vehicle is a separate endorsement under 383.93(b)(3), defined in 383.5 by tank capacity. A placarded tanker can need both the tank endorsement and the hazardous-materials endorsement. One does not include the other. Check the license you are carrying, not the license you meant to add.

A mixed load that crosses the threshold

Table 2's exception uses aggregate gross weight of Table 2 materials on that transport vehicle or freight container. Adding a second Table 2 item can push the combined weight from under 1,001 pounds to 1,001 pounds or more. The second item does not get its own separate 1,001-pound budget. Count the shipment weights on the papers before you leave the dock. If the total of Table 2 materials is 1,001 pounds or more, the (c) exception is not available, unless some other exception in the subchapter actually covers that material. Do the addition in pounds as the papers state them. Do not drop a pallet because it is "just paint" if the paper says it is a Class 3 in a quantity that counts.

A Table 1 item on the same trailer does not join that arithmetic as a way to hide. The Table 1 material is placarded at any quantity even if the Table 2 total is small. A mixed load can need a Table 1 placard and a Table 2 placard at the same time. Where 172.504(b) allows DANGEROUS in place of multiple Table 2 placards, remember the 1,000 kg (2,205 pound) category rule from a single loading facility. Write the weights down. The dock tally is the record you will wish you had if the scale asks why a particular diamond is missing.

Nothing in the counting exercise is advice about how to reload, transload, or split a shipment so a vehicle stays under the exception. If the freight on this truck meets the rule, placard this truck. If you do not know the class, do not guess a diamond and do not guess that you are under 1,001 pounds. Park it and get the paper corrected.

Leave the dock only after those five are true for the vehicle you are driving. A shipper's sentence that placards are "only for tankers" is not one of them.

Frequently Asked Questions