by , on April 1, 2014
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OSHA announced the long awaited final rule revising the standards for power generation, transmission and distribution on April 1, 2014 (this is not an April fools joke).  The document is scheduled for publication in the Federal Register on April 11, 2014.  It will be effective 90 days following publication, although OSHA has adopted delayed compliance deadlines for certain requirements. One big surprise for many will be a minimum requirement for Minimum Eye Head and Face Protection. See below:

Minimum Head and Face Protection
Exposure None* Arc-Rated Faceshield with a Minimum Rating of 8 cal/cm2* Arc-Rated Hood or Faceshield with Balaclava
Single-phase, open air 2 – 8 cal/cm2 9 – 12 cal/cm2 13 cal/cm2 or higher†
Three-phase 2 – 4 cal/cm2 5 – 8 cal/cm2 9 cal/cm2 or higher‡
*These ranges assume that employees are wearing hardhats meeting the specifications in §1910.135 or §1926.100(b)(2), as applicable.

†The arc rating must be a minimum of 4 cal/cm2 less than the estimated incident energy. Note that §1926.960(g)(5)(v) permits this type of head and face protection, with a minimum arc rating of 4 cal/cm2 less than the estimated incident energy, at any incident energy level.

‡Note that §1926.960(g)(5) permits this type of head and face protection at any incident energy level.

See the final rule (PDF)

Additional information


Hugh Hoagland
About author:

Hugh Hoagland is the foremost tester of clothing and PPE exposed to electrical arcs and is an arc flash expert. Read more about Hugh.


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