SIC 3531 to NAICS Code Crosswalk
The legacy 1987 SIC code 3531 (Construction Machinery and Equipment) maps transitively to modern U.S. Census 2022 NAICS code(s): 333120, 333923, 336510.
Concordance Concordance Mapping Asset
| Source Code | Source Industry | Target Code | Target Industry | Relation | Concordance Path |
|---|---|---|---|---|---|
| SIC 3531 | Construction Machinery and Equipment | NAICS 333120 | Construction Machinery Manufacturing | One-to-Many | SIC1987:3531 → NAICS1997:33312 → 2002:333120 → 2007:333120 → 2012:333120 → 2017:333120 → 2022:333120 |
| SIC 3531 | Construction Machinery and Equipment | NAICS 333923 | Overhead Traveling Crane, Hoist, and Monorail System Manufacturing | One-to-Many | SIC1987:3531 → NAICS1997:333923 → 2002:333923 → 2007:333923 → 2012:333923 → 2017:333923 → 2022:333923 |
| SIC 3531 | Construction Machinery and Equipment | NAICS 336510 | Railroad Rolling Stock Manufacturing | One-to-Many | SIC1987:3531 → NAICS1997:33651 → 2002:336510 → 2007:336510 → 2012:336510 → 2017:336510 → 2022:336510 |
Why Concordances Don't Line Up 1:1
The Standard Industrial Classification (SIC) system was established in 1937 and last updated in 1987, organizing businesses by end products. The North American Industry Classification System (NAICS) replaced it in 1997, classifying establishments by production processes. Because of this structural shift, many-to-many relationships are common, requiring chained concordance steps to bridge the historical gap.
Reverse Crosswalk: Going the other way? See the mapping at NAICS 333120 to SIC, NAICS 333923 to SIC, NAICS 336510 to SIC.
Related Pages & Tools
- SIC Code 3531 Profile — Legacy OSHA definition and associated industrial metadata.
- SIC Major Group 35 Hub — Legacy category group directory.
- Interactive Crosswalk Engine — Convert any SIC or NAICS code dynamically.
Primary Ingestion Source
Data sourced from the U.S. Census Bureau Concordances (1997, 2002, 2007, 2012, 2017, and 2022 editions). Last verified on 2026-06-30.