* A new public comment period has begun for the Isoprene Proposed DSD*
* Three DSDs and Fact Sheets are now final:
* Ethylene Dibromide
* Manganese and Inorganic Manganese Compounds
**March 2, 2018 is the deadline to submit public comments.* For information on how to submit comments or to view the DSDs and Fact Sheets, visit:https://www.tceq.texas.gov/toxicology and look for the New images.