The NIST Software Assurance Metrics And Tool Evaluation (SAMATE) project conducted a workshop on Metrics and Standards for Software Testing (MaSST) on June 20, 2012. This workshop was co-located with the IEEE Sixth International Conference on Software Security and Reliability (SERE) 2012 at the National Institute of Standards and Technology, Gaithersburg, Maryland. The main goals of MaSST were to bring together researchers and practitioners to (1) understand the state of the art and state of practice in software testing, (2) define work needed for improved methods and tools for software testing, and (3) list any important problems needing to be solved.