This Recommended Practice (RP) provides an overview of the techniques and considerations needed to define a viable Environmental Stress Screening (ESS) program. Intended to be an important tool for use by the electronics industry, this document discusses the process elements required to successfully implement ESS and the steps necessary to keep the ESS process dynamic; i.e., successful planning, implementation of ESS, the collection of failure data, the analysis of failures, and implementation of corrective action.