A summary of material modifications (SMM) addressing the health plan coverage mandate for COVID-19 diagnostic testing under the Families First Coronavirus Response Act (FFCRA), as expanded by the Coronavirus Aid, Relief, and Economic Security Act (CARES Act). This coverage mandate applied during the COVID-19 public health emergency (PHE) before it formally ended on May 11, 2023. This Standard Document has integrated notes with important explanations and drafting tips.