Adjusted Service Commitment exclusion period (ASC exclusion period) The time during the year (the holiday mailing season in December) when service measurement results for Priority Mail, Priority Mail Express, Priority Mail Express International, and 3- to 5-day First-Class Mail services are not factored into the cumulative year-to-date scores for service products. During the exclusion period,… Continue reading Adjusted Service Commitment exclusion period – USPS Definition