This glossary defines acronyms and terminology used throughout this website. Some terminology is standardized and used by the United States Department of Defense. 

PTAC

Procurement Technical Assistance Center

R&D

Research and Development

RAC

Research Advisory Council

RCO

Rapid Capabilities Office

RDT&E

Research Development, Test and Evaluation

S&T

Science and Technology

SAM

System for Award Management

SBIR

Small Business Innovation Research