| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.1200(i) - Clarification on the use of ingredient percentage and trade secret on SDSs |
| 2 | - 1910.1200(i) - Use of trade secret in lieu of known ingredient percentages on SDSs |
| 3 | - 1910.1200(i) - Criteria for trade secret status |