A small walk-in enclosure accommodating no more than 2 persons, if the project can be completely contained in the enclosure
Alternative control methods that comply with the following:
- Keep airborne asbestos dust from entering the breathing zone of employees
- Are evaluated and certified by a CIH or licensed PE (or by a competent person if the material to be removed is < or = 25 linear or 10 square feet)
- Have the required evaluation/certification by a CIH/PE sent to the national OSHA Office of Technical Support.