Early Development Documents
Issue Papers Relating to Industry Classification
- Issues Paper No. 1, "Conceptual Issues" [PDF 3.78M]
- Issues Paper No. 2, "Aggregation Stuctures and Heirarchies" [PDF 1.92M]
- Public Comments on Issues Papers No. 1 & 2 [PDF 532K]
- Issues Paper No. 3, "Collectability of Data" [PDF 2.22M]
- Issues Paper No. 4, "Criteria for Determining Industries" [PDF 6.32M]
- Issues Paper No. 5, "The Impact of Classification Revisions on Time Series" [PDF 2.07M]
- Issues Paper No. 6, "Services Classifications" [PDF 1.34M]
ECPC Concept Reports
- ECPC Report 1, "Economic Concepts in SIC Industries" [PDF 47M]
- ECPC Report 2, "The Heterogeneity Index: A Quantitative Tool to Support Industrial Classifications" [PDF 15M]
NAICS Clarification Memoranda, 1-3
- NAICS Sector 42 Wholesale Trade Scope and Implementation Guidelines for U.S. Statistical Agencies [PDF 25K]
- NAICS Alternate Aggregation Structure for Use By U.S. Statistical Agencies [PDF 10K]
- Classifying SIC Auxiliary Establishments in NAICS [PDF 33K]
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