Logging Freight Shipment for 1997
Submitted To
Oak Ridge National Laboratory
Prepared By
MacroSys Research and
Technology
888 17th
Street, N.W., Suite 312
Washington, DC20006
December 29, 2006
Table of Contents
1. Definition of the Commodity Flow Data Gap
1.2 Commodities Involved in the Data Gap
1.3 Establishments Involved in the Data Gap
2. Difference between 1997 and 2002 CFS
3. Data Sources and Method of Estimation
1. Definition of the Commodity Flow Data Gap
1.1 General Description
The logging industry is covered in the 1997 CFS. The 2002 CFS did not include logging because of the implementation of the North American Industry Classification System (NAICS) for selection of business establishments, and hence became part of CFS out-of-scope agriculture industry (NAICS 1133). In contrast, the 1997 CFS businesses were selected based on the Standard Industry Classification (SIC) and logging industry was included under manufacturing SIC 2411.
The objective of this report is to separately identify data on the tons, ton-miles and value of logging freight shipment by SCTG commodity, and by mode of transportation for 1997 that is comparable with the 2002 CFS out-of-scope estimates.
1.2 Commodities Involved in the Data Gap
The main commodity group affected by this data gap is SCTG 25 Logs and Other Wood in the Rough, which is produced primarily by the logging sector, i.e., NAICS 1133 or SIC 2411.
1.3 Establishments Involved in the Data Gap
The establishments impacted by this data gap are those primarily engaged in one or more of the following: (1) cutting timber; (2) cutting and transporting timber; and (3) producing wood chips in the field. These establishments are grouped under NAICS 1133 or SIC 2411.
2. Difference between 1997 and 2002 CFS
As pointed out above, the 1997 CFS covers all logging freight shipments under manufacturing industry SIC 2411. In contrast, the 2002 CFS does not cover logging freight shipment originating from NAICS 1133, because these businesses switched from the SIC manufacturing to NAICS agriculture and forestry. Other wood-related products produced by non-logging NAICS establishments remained in the CFS and were in-scope in the 2002 CFS.
3. Data Sources and Method of Estimation
The freight shipment data for logging are directly obtained from the 1997 CFS. The entire tons, ton-miles and value of freight reported in the 1997 CFS for SCTG 25 logs and other wood in the rough originated from logging industry. These data exactly matches the scope and coverage of the 2002 CFS out-of-scope estimates for logging.
4. Quality of the Estimates
The 1997 CFS data are collected through sample survey. As a result, they are subject to sampling and non-sampling errors.
Reference
U.S. Department of Commerce, Census Bureau, and U.S. Department of Transportation, Bureau of Transportation Statistics, "2002 Commodity Flow Survey," December 2004.
U.S. Department of Commerce, Census Bureau, and U.S. Department of Transportation, Bureau of Transportation Statistics, "1997 Commodity Flow Survey," December 1999.
