Shipping Papers & Communication
Not publishedof exam
Placards & Markings
Not publishedof exam
Hazard Classes 1-9
Not publishedof exam
Nine ClassesPacking GroupsORM-DDivisions
Loading, Unloading & Segregation
Not publishedof exam
No SmokingSegregation TableCargo Tank AttendanceBracing & Securing
Emergency Response
Not publishedof exam
ERGCHEMTRECNational Response CenterNotification Triggers
Security, Routing & Parking
Not publishedof exam
TSA Threat AssessmentSafe Haven300-Foot RuleRailroad Stop
Quick Facts
- Exam
- TX CDL Hazmat (H)
- Credential
- Hazardous Materials Endorsement
- Questions
- 30
- Pass score
- 80% (24/30)
- Time limit
- Not published
- Format
- Multiple-choice, DPS office
- Level
- CDL endorsement
- Handbook
- Section 9, DL-7C (Jul 2017)
Basic Description Order
ID, Name, Class, Group — in that order
ID number firstShipping name secondHazard class thirdPacking group last
Basic Shipping Description
- ID number
- First item listed
- Proper shipping name
- Second, from Column 2
- Hazard class/division
- Third in the order
- Packing group
- Last, Roman numeral
- Total quantity
- Before or after description
- RQ
- Marks reportable quantity
Shipping Paper Handling
- Hazmat entry
- Listed first or highlighted
- HM column
- X marks hazmat row
- Paper location
- Driver's door pouch or seat
- Shipper retention
- 2 years (3 for waste)
- Carrier retention
- 1 year, non-originating carrier
- Waste manifest
- Signed by hand, dated
Table 1 vs Table 2
Table 1
- Any amount triggers placard
- Explosives, poison gas, radioactive
Table 2
- 1,001 lbs aggregate triggers placard
- Flammable, corrosive, oxidizer classes
Always vs weight threshold
Which Placard Table Applies
- Class 1.1/1.2/1.3 explosives→Table 1, any amount(Always placard)
- 2.3 poison or 4.3 wet→Table 1, any amount
- 6.1 inhalation zone A/B→Table 1, any amount
- Class 3/8/9 <1,001 lbs→No placard required(Non-bulk only)
- Table 2 class, 1,001+ lbs→Placard required
- Two+ Table 2 classes, 1,001 lbs→DANGEROUS placard allowed(Unless one hits 2,205 lbs)
- Bulk packaging, any residue→Placard all 4 sides
Placard Table 1 (Any Amount)
- 1.1 Mass explosion
- Explosives 1.1 placard
- 1.2 Projection hazard
- Explosives 1.2 placard
- 2.3 Poison gas
- Poison Gas placard
- 4.3 Dangerous when wet
- Dangerous When Wet placard
- 6.1 Inhalation zone A/B
- Poison Inhalation placard
- 7 Radioactive Yellow III
- Radioactive placard
Placarding Rules & Thresholds
- Table 2 threshold
- 1,001 lbs aggregate
- DANGEROUS placard cap
- Max 2,205 lbs per class
- Placard count
- Minimum 4 identical placards
- Placard size
- 250mm, 9.84 inches square
- Bulk packaging
- Placard even if residue only
- Inhalation hazard
- No 1,000-lb exception
- Placard spacing
- 3 inches from other markings
Nine Hazard Classes
Explosive, Gas, Flammable, Solid, Oxidizer, Poison, Radioactive, Corrosive, Misc
1 Explosives2 Gases3 Flammable liquid9 Miscellaneous
Bulk vs Non-Bulk Packaging
Bulk packaging
- Over 119 gal liquid
- Over 882 lb solid
Non-bulk packaging
- 119 gal or less
- 882 lb or less
Capacity threshold split
Hazard Classes 1-9
- Class 1
- Explosives (dynamite, fireworks)
- Class 2
- Gases (propane, helium)
- Class 3
- Flammable liquids (gasoline)
- Class 4
- Flammable solids (matches)
- Class 5
- Oxidizers (ammonium nitrate)
- Class 6
- Poisons (pesticides, arsenic)
- Class 7
- Radioactive (uranium, plutonium)
- Class 8
- Corrosives (battery fluid)
- Class 9
- Misc hazardous (asbestos)
Divisions & Special Terms
- ORM-D
- Other Regulated Material-Domestic
- Combustible liquid
- No hazard class number
- Division 1.4-1.6
- Minor or insensitive explosion hazards
- Division 2.1/2.2/2.3
- Flammable, non-flammable, or poison gas
- Division 4.1/4.2/4.3
- Solid, spontaneous, or wet-reactive
- Division 5.1/5.2
- Oxidizer or organic peroxide
Cargo Tank vs Portable Tank
Cargo tank
- Permanently attached
- Loaded on vehicle
Portable tank
- Not permanently attached
- Loaded off vehicle
Attached vs detachable
Loading Precaution By Class
- Loading Class 1 explosives→Engine off, disable heaters
- Loading flammable liquids (Class 3)→Engine off, ground tank
- Loading Class 4/5 materials→Keep dry, ventilated space
- Loading Class 8 corrosives→Upright, one at a time
- Loading Class 7 radioactive→Check transport index limit
- Compressed gas cylinders, no racks→Held upright, flat floor
Loading Rules
- No-smoking classes
- Class 1, 2.1, 3, 4, 5
- Cargo heater ban
- Class 1, 2.1, 3
- Closed cargo space
- Class 1, 4, 5
- Class 7 transport index
- Total limit 50 per vehicle
- Nitric acid
- Never load above other product
- Leaking package
- Never transport, illegal to move
Segregation & Tank Rules
- Segregation table
- Keeps incompatible classes apart
- Poison + foodstuff
- Never load together
- Attendant distance
- Within 25 feet of tank
- Manhole/valve
- Close before moving tank
- Engine rule
- Off unless running pump
- Bulk tank capacity
- Over 119 gallons
Two Calls in an Emergency
NRC reports it, CHEMTREC explains it
NRC: (800) 424-8802CHEMTREC: (800) 424-9300
National Response Center vs CHEMTREC
National Response Center
- Mandatory federal reporting
- (800) 424-8802
CHEMTREC
- Technical chemical guidance
- (800) 424-9300
Report vs technical help
Emergency Response Action
- Death, injury, or major damage→Call National Response Center
- Need chemical technical info→Call CHEMTREC
- Trailer doors feel hot→Do not open, call help
- Material leaking from vehicle→Park, secure, stay, call
- Approaching a spill by smell→Never identify by smell
Emergency Response Info
- ERG
- Indexed by ID, shipping name
- ERG minimum content
- Hazards, fire risk, first aid
- National Response Center
- (800) 424-8802
- CHEMTREC
- (800) 424-9300
- Notification trigger
- Death, injury, or $50,000+ damage
- Report deadline
- Written report within 30 days
300-Foot No-Park Zone
Never park near bridge, tunnel, crowd, or open fire
300 feet minimumExplosives: 5 ft from road too
H Endorsement vs X Endorsement
H endorsement
- Hazmat only
- Any vehicle class
X endorsement
- Tank + hazmat combined
- Requires both knowledge tests
Hazmat alone vs tank+hazmat
Parking a Placarded Vehicle
- Carrying 1.1/1.2/1.3 explosives→Never park within 5 ft
- Carrying 1.1/1.2/1.3 explosives→No parking within 300 ft
- Explosives load, must stop→Someone must attend vehicle
- Parked on shipper/carrier property→Attendant not required
- No safe spot nearby→Use approved safe haven
Parking & Driving Rules
- Explosives parking
- Never within 5 ft of road
- 300-ft rule
- No bridge, tunnel, crowd, or fire
- Attendant position
- In cab or within 100 ft
- Safe haven
- Approved unattended explosives parking
- Fire extinguisher
- 10 B:C rating minimum
- Railroad stop
- 15-50 feet before nearest rail
Attending vs Safe Haven
Attending vehicle
- Within 100 ft, awake
- Able to move vehicle
Safe haven
- Approved unattended location
- For explosives loads only
Watch it vs leave it
Security & Texas HME Context
- TSA threat assessment
- Required before HME issuance
- USA PATRIOT Act
- Mandates hazmat background check
- Fingerprinting
- Vendor appointment after DPS application
- First-time H
- ELDT required before test
- HME validity
- 5 years, tied to CDL
- X endorsement
- Tank + hazmat combined
Common Traps
Table 1 ≠ Table 2
Table 1: any amount ≠ Table 2: 1,001 lbs
H Endorsement ≠ X Endorsement
H: hazmat only ≠ X: tank + hazmat
Cargo Tank ≠ Portable Tank
Cargo tank: permanent ≠ Portable tank: detachable
NRC ≠ CHEMTREC
NRC: mandatory report ≠ CHEMTREC: technical help
Bulk ≠ Non-Bulk
Bulk: over 119 gal ≠ Non-bulk: 119 gal or less
ORM-D ≠ Hazard Class
ORM-D: no class number ≠ Domestic shipment only
DANGEROUS Placard ≠ Mandatory
Optional substitute placard ≠ Never required by rule
Last Minute
- 1.30 questions, 80% to pass
- 2.Order: ID, name, class, group
- 3.Table 1: any amount placards
- 4.Table 2: 1,001 lbs triggers placard
- 5.Nine hazard classes, memorize examples
- 6.No smoking near explosive/flammable classes
- 7.Never park within 5 ft, explosives
- 8.300 ft (explosives): bridges, tunnels, fire
- 9.TSA threat assessment required for HME
- 10.First-time H needs ELDT first
- 11.Stop 15-50 ft before rail crossings
- 12.Attendant must stay within 100 ft
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