Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 447 - Control of asbestos emissions
Section NR 447.09 - Spraying

Universal Citation: WI Admin Code ยง NR 447.09

Current through August 26, 2024

(1) Except as provided in sub. (2), the owner or operator of an operation in which asbestos-containing materials are spray applied shall comply with the following requirements:

(a) For spray-on application on buildings, structures, pipes and conduits, the owner or operator may not use material containing more than 1% asbestos as determined using the method specified in Appendix E to Subpart E, 40 CFR part 763, section 1, Polarized Light Microscopy, incorporated by reference in s. NR 484.04(28).

(b) For spray-on application of materials that contain more than 1% asbestos as determined using the method specified in Appendix E to Subpart E, 40 CFR part 763, section 1, Polarized Light Microscopy, on equipment and machinery, the owner or operator shall:
1. Notify the department at least 20 days before beginning the spraying operation. Include the following information in the notice:
a. Name and address of owner or operator.

b. Location of spraying operation.

c. Procedures to be followed to meet the requirements of this section.

2. Discharge no visible emissions to the outside air from spray-on application of the asbestos-containing material or use the methods specified by s. NR 447.15 to clean emissions containing particulate asbestos material before they escape to, or are vented to, the outside air.

(2) The requirements of sub. (1) do not apply to the spray-on application of materials where the asbestos fibers in the materials are encapsulated with a bituminous or resinous binder during spraying and the materials are not friable after drying.

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