If a manufacturer has a negative monthly AMP, should they use the most recent valid monthly AMP in the quarterly calculation?

CMS has previously provided guidance regarding the reporting of zero or negative AMP in Manufacturer Release #80 (January 5, 2010) in which we specify that if a calculated monthly AMP is zero or negative, we recommend that manufacturers report the most recent prior month's positive AMP. However, the actual calculated monthly AMP should be used to calculate the quarterly AMP. If the quarterly AMP is zero or negative, we recommend that manufacturers report the most recent positive AMP value. Please see Manufacturer Release #80: https://www.medicaid.gov/Medicaid-CHIP-Program-Information/ByTopics/Benefits/Prescription-Drugs/Downloads/Rx-Releases/MFR-Releases/mfr-rel-080.pdf. (PDF, 127.6 KB)