Solid Science Practical Solutions


OSHA Issues Guidance for Silica

July 29, 2019


OSHA issues “Frequently Asked Questions” guidance document for Crystalline Silica Standard for General Industry (29 CFR 1910.1053)


Key Highlights:


  1. Workplace is NOT exempt if it relies primarily on engineering controls to minimize exposures.  This is due to potential/anticipated failure of engineering controls.
  2. Employer does NOT have to develop a formal Exposure Control Plan if they can provide objective documentation that exposures are regularly below the Action Level of 25 ug/m3.
  3. Dose NOT automatically exempt short term exposures unless objective data shows that exposures are regularly below 25 ug/m3.


Full document can be viewed via this link: