Lead RRP work practice standards practice questions
20 free practice questions from 40 CFR 745.85(a). Each answer is explained and linked to the rule it comes from.
Lead RRP work practice standards
20 questions across 7 topics. After each answer you see why it is right, with a link to the official source.
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Prefer to read? Here is every question in the Lead RRP work practice standards set, grouped by topic. Open a question to see the answer, why it is right and the official source.
Who does the work and warning signs
1. To the extent practicable, what language does 745.85(a)(1) say the firm's work-area warning signs must be in?
- A. English, whatever language the occupants speak
- B. The language spoken by the firm's renovation workers
- C. The primary language of the occupants
- D. The language used in the renovation contract
Show answer
Answer: C. The primary language of the occupants
The signs warn "occupants and other persons not involved in renovation activities to remain outside of the work area." "To the extent practicable, these signs must be in the primary language of the occupants."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
2. According to 745.85(a)(1), when are additional signs not required by that section?
- A. When warning signs have been posted in accordance with 24 CFR 35.1345(b)(2) or 29 CFR 1926.62(m)
- B. When the occupants have received the lead hazard information pamphlet
- C. When the renovation is limited to exterior surfaces
- D. When the occupants have agreed in writing to stay out of the work area
Show answer
Answer: A. When warning signs have been posted in accordance with 24 CFR 35.1345(b)(2) or 29 CFR 1926.62(m)
"If warning signs have been posted in accordance with 24 CFR 35.1345(b)(2) or 29 CFR 1926.62(m), additional signs are not required by this section."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
Containing the work area
3. Before beginning the renovation, what result must the firm's isolation of the work area achieve under 745.85(a)(2)?
- A. Dust-lead levels outside the work area stay below the dust-lead action levels
- B. Occupants cannot see into the work area
- C. Any dust that leaves the work area is HEPA-vacuumed by the end of the day
- D. No dust or debris leaves the work area while the renovation is being performed
Show answer
Answer: D. No dust or debris leaves the work area while the renovation is being performed
"Before beginning the renovation, the firm must isolate the work area so that no dust or debris leaves the work area while the renovation is being performed."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
4. What does 745.85(a)(2) require of containment with respect to emergencies?
- A. It must be made of fire-rated sheeting
- B. It must be installed so that it does not interfere with occupant and worker egress in an emergency
- C. It must be taken down whenever occupants are in the dwelling
- D. It must include a posted emergency evacuation map
Show answer
Answer: B. It must be installed so that it does not interfere with occupant and worker egress in an emergency
"The firm must also ensure that containment is installed in such a manner that it does not interfere with occupant and worker egress in an emergency."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
Interior containment
5. On an interior renovation, what does 745.85(a)(2)(i)(E) require to be free of dust and debris before leaving the work area?
- A. Only the waste bags, which must be double-bagged
- B. All personnel, tools, and other items, including the exteriors of containers of waste
- C. Only the workers' outer clothing
- D. Only power tools
Show answer
Answer: B. All personnel, tools, and other items, including the exteriors of containers of waste
The firm must "Use precautions to ensure that all personnel, tools, and other items, including the exteriors of containers of waste, are free of dust and debris before leaving the work area."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
6. What does 745.85(a)(2)(i)(B) require for ducts opening in the work area of an interior renovation?
- A. Run the HVAC fan continuously to pull dust out of the room
- B. Fit each duct opening with a HEPA filter
- C. Close them only if the heating or cooling system will be running
- D. Close and cover them with taped-down plastic sheeting or other impermeable material
Show answer
Answer: D. Close and cover them with taped-down plastic sheeting or other impermeable material
The firm must "Close and cover all ducts opening in the work area with taped-down plastic sheeting or other impermeable material."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
7. On an interior renovation, when may floor containment stop at the edge of the vertical barrier?
- A. When using a vertical containment system of impermeable barriers that extend from the floor to the ceiling and are tightly sealed at joints with the floor, ceiling and walls
- B. When the floor has installed carpet
- C. When the doors to the work area are closed and covered
- D. When the floor area of the work area is smaller than 40 square feet
Show answer
Answer: A. When using a vertical containment system of impermeable barriers that extend from the floor to the ceiling and are tightly sealed at joints with the floor, ceiling and walls
"Floor containment measures may stop at the edge of the vertical barrier when using a vertical containment system consisting of impermeable barriers that extend from the floor to the ceiling and are tightly sealed at joints with the floor, ceiling and walls." The floor covering itself must cover "the floor surface, including installed carpet."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
Exterior containment
8. What material does 745.85(a)(2)(ii)(C) specify for covering the ground on an exterior renovation?
- A. Reusable canvas drop cloths
- B. A layer of mulch or straw
- C. Plastic sheeting or other disposable impermeable material
- D. Any breathable landscape fabric
Show answer
Answer: C. Plastic sheeting or other disposable impermeable material
For exterior renovations the firm must "Cover the ground with plastic sheeting or other disposable impermeable material".
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
9. For an exterior renovation on a multi-story building, which doors and windows on the floors below must the firm close?
- A. None; only the floor of the renovation is affected
- B. Only those directly beneath the surfaces being renovated
- C. Every door and window in the building
- D. All doors and windows on all floors below that are the same horizontal distance from the renovation
Show answer
Answer: D. All doors and windows on all floors below that are the same horizontal distance from the renovation
The firm must "close all doors and windows on all floors below that are the same horizontal distance from the renovation."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
10. Which condition does 745.85(a)(2)(ii)(D) name as requiring the firm to erect vertical containment or equivalent extra precautions?
- A. The renovation will affect surfaces within 10 feet of the property line
- B. The building has more than one story
- C. A heat gun will be used on painted surfaces
- D. The ground covering extends more than 10 feet
Show answer
Answer: A. The renovation will affect surfaces within 10 feet of the property line
"If the renovation will affect surfaces within 10 feet of the property line, the renovation firm must erect vertical containment or equivalent extra precautions in containing the work area" to keep dust and debris from adjacent buildings and properties.
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
11. On an exterior renovation, how must doors within the work area that will be used while the job is being performed be treated?
- A. Locked and kept unused until cleaning verification is complete
- B. Covered with plastic sheeting or other impermeable material in a manner that allows workers to pass through while confining dust and debris to the work area
- C. Left open for ventilation
- D. Taped shut with no way for workers to pass through
Show answer
Answer: B. Covered with plastic sheeting or other impermeable material in a manner that allows workers to pass through while confining dust and debris to the work area
The firm must "Ensure that doors within the work area that will be used while the job is being performed are covered with plastic sheeting or other impermeable material in a manner that allows workers to pass through while confining dust and debris to the work area."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
12. Which circumstance does the "unless" clause of 745.85(a)(2)(ii)(C) name for exterior ground covering that cannot extend 10 feet?
- A. The surfaces being renovated are on the second floor or higher
- B. The ground under the work area is paved
- C. The renovation will be finished within one work day
- D. The property line prevents 10 feet of such ground covering
Show answer
Answer: D. The property line prevents 10 feet of such ground covering
The ground covering extends "10 feet beyond the perimeter of surfaces undergoing renovation or a sufficient distance to collect falling paint debris, whichever is greater, unless the property line prevents 10 feet of such ground covering."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
Prohibited and restricted practices
13. What feature of a machine brings it under the restriction in 745.85(a)(3)(ii)?
- A. It runs on electricity rather than by hand
- B. It is used on an exterior surface
- C. It is designed to remove paint or other surface coatings through high speed operation
- D. It heats painted surfaces to 1,100 degrees Fahrenheit or more
Show answer
Answer: C. It is designed to remove paint or other surface coatings through high speed operation
The paragraph covers "machines designed to remove paint or other surface coatings through high speed operation such as sanding, grinding, power planing, needle gun, abrasive blasting, or sandblasting". Heat guns are dealt with separately in 745.85(a)(3)(iii).
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
14. How does 745.85(a)(3)(ii) require shrouded, HEPA-equipped high-speed paint removal machines to be operated?
- A. At the lowest speed setting only
- B. So that no visible dust or release of air occurs outside the shroud or containment system
- C. Only on exterior surfaces
- D. Only while a second worker HEPA-vacuums behind the machine
Show answer
Answer: B. So that no visible dust or release of air occurs outside the shroud or containment system
"Machines must be operated so that no visible dust or release of air occurs outside the shroud or containment system."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
Waste from renovations
15. If a chute is used to remove waste from the work area, what does 745.85(a)(4)(i) require?
- A. The chute must be covered
- B. The chute must have a HEPA exhaust fan
- C. The chute must be misted after each load
- D. The chute must be used only at the end of the work day
Show answer
Answer: A. The chute must be covered
"If a chute is used to remove waste from the work area, it must be covered."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
16. When does 745.85(a)(4)(ii) require collected renovation waste to be stored under containment, in an enclosure, or behind a barrier?
- A. Only at the conclusion of the renovation
- B. Only while the firm is transporting it
- C. Only when occupants remain in the dwelling during the work
- D. At the conclusion of each work day and at the conclusion of the renovation
Show answer
Answer: D. At the conclusion of each work day and at the conclusion of the renovation
"At the conclusion of each work day and at the conclusion of the renovation, waste that has been collected from renovation activities must be stored under containment, in an enclosure, or behind a barrier" that prevents release of and access to dust and debris.
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
Cleaning the work area
17. During cleaning of the work area, when may sheeting used to isolate contaminated rooms from non-contaminated rooms be removed?
- A. Before any other sheeting is removed
- B. Only after the cleaning and removal of other sheeting
- C. At the end of the last work day, before cleaning starts
- D. As soon as paint chips have been bagged
Show answer
Answer: B. Only after the cleaning and removal of other sheeting
"Sheeting used to isolate contaminated rooms from non-contaminated rooms must remain in place until after the cleaning and removal of other sheeting."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
18. During the additional cleaning for an interior renovation, which surfaces does 745.85(a)(5)(ii)(C) leave out of the damp-cloth wipe of remaining surfaces and objects?
- A. Windowsills and window troughs
- B. Countertops and cabinet fronts
- C. Carpeted or upholstered surfaces
- D. Hard furniture and fixtures
Show answer
Answer: C. Carpeted or upholstered surfaces
The firm must "Wipe all remaining surfaces and objects in the work area, except for carpeted or upholstered surfaces, with a damp cloth."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
19. When does 745.85(a)(5)(ii)(B) require the HEPA vacuum to be equipped with a beater bar?
- A. When vacuuming carpets and rugs
- B. When vacuuming walls
- C. When vacuuming windowsills
- D. When vacuuming exterior ground covering
Show answer
Answer: A. When vacuuming carpets and rugs
The firm must "Thoroughly vacuum all remaining surfaces and objects in the work area, including furniture and fixtures, with a HEPA vacuum. The HEPA vacuum must be equipped with a beater bar when vacuuming carpets and rugs."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)
20. During cleaning of the work area after an interior or exterior renovation, what does 745.85(a)(5)(i)(A) require for paint chips and debris?
- A. Sweep them into a pile for the waste hauler to collect
- B. Leave them on the plastic sheeting so they are folded up with it
- C. Collect them all and, without dispersing any of it, seal the material in a heavy-duty bag
- D. Wet them down and rinse them into a floor drain
Show answer
Answer: C. Collect them all and, without dispersing any of it, seal the material in a heavy-duty bag
The firm must "Collect all paint chips and debris and, without dispersing any of it, seal this material in a heavy-duty bag."
Source: eCFR: 40 CFR 745.85, Work practice standards (as of Nov 4, 2026)