Statistical Analysis System (SAS) Programming Certification Practice Exam 2026 - Free SAS Practice Questions and Study Guide

The primary requirement when using a PROC FORMAT statement is that it must define at least one value format. PROC FORMAT is specifically designed for creating custom formats that can be applied to variables when displaying data, summarizing data, or performing statistical analyses. A format controls how values are displayed or how they correspond to other values in the data set, making it essential to define at least one format within the PROC FORMAT step for it to serve its purpose effectively.

The other aspects mentioned, such as ending with a DATA step, associating a library reference, or including a RUN statement, are not inherent requirements of the PROC FORMAT itself. The focus is solely on the creation and definition of formats, which are central to managing and presenting data in a meaningful way within SAS programming. Therefore, the need to provide at least one value format stands out as the foundational requirement when utilizing this procedure.