What is Organizational Process Assets (OPAs)?
Organizational process assets are everything your organization has learned and standardized that you can reuse: templates, policies, procedures, past project files, estimating databases, and lessons learned. Think of them as the company's institutional memory — assets because they save you from starting every project from zero.
The exam contrast is with enterprise environmental factors: OPAs are things the organization owns and can change (a template, a process); EEFs are conditions you must work within (regulations, market conditions, org culture).
Worked example
Starting a new mobile-app project, the PM pulls the company's standard risk register template, the estimate actuals from the last three apps, and the lessons-learned note that said "app-store review always takes two weeks longer than promised." Twenty minutes of reuse that saves a month of pain — that's OPAs working.