Every census, survey, and program has technical documentation to assist users. These may include any of the following resources.
Economic Census Code Lists
The Economic Census uses code lists from the North American Industry Classification System (NAICS) & the North American Product Classification System (NAPCS).
Economic Census Data Dictionary
A repository of information describing database attributes including identification of record codes and area characteristics, endnotes, and table section.
Economic Census Methodology
The methods we use to collect and produce the Economic Census, including sampling, questions, collection, review, quality, weighting, etc
2017 Economic Census Surveys & Instructions
There are approximately 800 versions of the 2017 Economic Census survey, each tailored to a particular industry or group of industries.