This report contains the procedural history of the 1970 Census of Population and Housing. It includes pretests, dress rehearsals, geographic work, logistics and preparatory work, field enumeration, public information program, coverage improvement program, processing the data, Puerto Rico and the outlying areas, 1970 Census publication program, sampling and estimation, Census Employment Survey, research and assistance in data use, 1970 Census evaluation and research program, population and housing items on the U.S. household questionnaires, 1970 components of inventory change survey, and 1970 residential finance program.