SILICA GRINDING
This classification applies to the crushing or grinding of excavated or quarried materials to produce products that will pass through an 8-mesh screen. If the crushed or ground material is retained on an 8-mesh screen, the crushing or grinding operations shall be separately classified as 1710, Stone Crushing.
Silica grinding that is performed in connection with sand, gravel or clay digging shall be separately classified as 4000(1), Sand or Gravel Digging, or 4000(2), Clay Digging, if 25% or less of the excavated material is crushed or ground. If more than 25% of the excavated material is crushed or ground, all crushing or grinding activities shall be separately classified as 1741(1) or 1710, Stone Crushing.
Mining or quarrying operations shall be separately classified.
Employees engaged exclusively in delivery of the finished product shall be separately classified as 8232(2), Building Material Dealers.
| Shown below is the previously published phraseology and footnote | Effective Date |
|---|---|
Phraseology: SILICA GRINDING Footnote: This classification applies to the crushing or grinding of excavated or quarried materials to produce products that will pass through an 8-mesh screen. If the crushed or ground material is retained on an 8-mesh screen, the crushing or grinding operations shall be classified as 1710, Stone Crushing. Silica grinding that is performed in connection with sand, gravel or clay digging shall be separately classified as 4000(1), Sand or Gravel Digging, or 4000(2), Clay Digging, if 25% or less of the excavated material is crushed or ground. If more than 25% of the excavated material is crushed or ground, all crushing or grinding activities shall be separately classified as 1741(1) or 1710, Stone Crushing. Mining or quarrying operations shall be separately classified. Employees engaged exclusively in delivery of the finished product shall be separately classified as 8232(2), Building Material Dealers. | 1/1/2021 |
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