422x Apr 2026

The "x" in 422x represents a variable digit that specifies the type of warehousing. Common sub-sectors include: Farm Product Warehousing and Storage. 4222: Refrigerated Warehousing and Storage. 4225: General Warehousing and Storage.

Warehousing facilities may be subject to the Emission Inventory Criteria and Guidelines (EICG) if their activities involve specific industrial processes or chemical storage listed under Appendix E. The "x" in 422x represents a variable digit

The 422x classification represents a diverse industrial sector that must navigate complex regulatory landscapes. Effective management requires a clear understanding of both the SIC code definitions and the specific local or state environmental mandates that overlay them. Guide for authors - Poetics - ISSN 0304-422X 4225: General Warehousing and Storage

For facilities in this sector, maintaining compliance involves rigorous documentation: Effective management requires a clear understanding of both

Facilities identified within the 422x series are often subject to specific environmental reporting requirements, such as those outlined by the California Air Resources Board (CARB):

A facility is not automatically subject to these requirements unless it meets specific activity thresholds, such as those involving diesel engine exhaust or hazardous chemical handling. 4. Operational Standards