| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.107(d)(9) - Hierarchy of controls for exposure to air contaminants |
| 2 | - 1910.107(d)(9) - Full compliance with NFPA 33-2000 may be considered a de minimus violation. |
| 3 | - 1910.107(d)(9) - Use of "Electronic Air Cleaners" for spray finishing operations. |