Section 121.2 - Periodicals(a)End-to-End.(1) A 3- to 6-day service standard is applied to Periodicals pieces properly accepted before the day-zero Critical Entry Time (CET) and merged with First-Class Mail pieces for surface transportation (as per the Domestic Mail Manual (DMM)), with the standard specifically equaling the sum of 1 day plus the applicable First-Class Mail service standard.(2) A 3-day service standard is applied to Periodicals pieces properly accepted before the day-zero CET if: The origin and destination are separately in Puerto Rico and the U.S. Virgin Islands; or if the origin is in Alaska, the service standard set forth in paragraph (a)(1) does not apply, and the destination is in the following 3-digit ZIP Code areas in Alaska (or designated portions thereof): 995 (5-digit ZIP Codes 99540 through 99599), 996, 997, 998, and 999.(3) A 4-day service standard is applied to Periodicals pieces properly accepted before the day-zero CET if: the origin and destination are separately in Hawaii and Guam; or the origin and destination are separately in Hawaii and American Samoa.(4)(i) A 5- to 8-day service standard is applied to Periodicals pieces properly accepted before the day-zero CET if they originate and destinate within the contiguous 48 states, they are not merged with First-Class Mail pieces for surface transportation (as per the DMM), and the Area Distribution Center (ADC) and Sectional Center Facility (SCF) are co-located, with the standard specifically equaling the sum of 4 days plus the number of additional days (from 1 to 4) required for surface transportation between the applicable 3-digit ZIP Code origin-destination pairs;(ii) A 6- to 9-day service standard is applied to Periodicals pieces properly accepted before the day-zero CET if they originate and destinate within the contiguous 48 states, they are not merged with First-Class Mail pieces for surface transportation (as per the DMM), and the ADC and SCF are not co-located, with the standard specifically equaling the sum of 5 days plus the number of additional days (from 1 to 4) required for surface transportation between the applicable 3-digit ZIP Code origin-destination pairs;(5) A 12- to 26-day service standard is applied to all remaining Periodicals pieces properly accepted before the day-zero CET, with the standard specifically equaling the sum of 5 days plus the number of additional days (from 7 to 21) required for intermodal (highway, boat, air-taxi) transportation outside the contiguous 48 states for the applicable 3-digit ZIP Code origin-destination pairs.(b)Destination Entry.(1)Destination Delivery Unit (DDU) Entered Mail. A 1-day (overnight) service standard is applied to Periodicals pieces that qualify for a DDU rate and are properly accepted before the day-zero CET at the designated DDU.(2)Destination Sectional Center Facility (DSCF) Entered Mail.(i) A 1-day (overnight) service standard is applied to Periodicals pieces that qualify for a DSCF rate and are properly accepted before the day-zero CET at the designated DSCF, except for mail entered at the SCF in Puerto Rico and destined to the U.S. Virgin Islands, mail entered at the SCF in Hawaii and destined to American Samoa, and mail destined to the following 3-digit ZIP Code areas in Alaska (or designated portions thereof): 995 (5-digit ZIP Codes 99540 through 99599), 996, 997, 998, and 999;(ii) A 3-day service standard is applied to Periodicals pieces that qualify for a DSCF rate and are properly accepted before the day-zero CET at the designated DSCF, if they are entered at the DSCF in Puerto Rico and destined to the U.S. Virgin Islands, entered at the DSCF in Hawaii and destined to American Samoa, or destined to the following 3-digit ZIP Code areas in Alaska (or designated portions thereof): 995 (5-digit ZIP Codes 99540 through 99599), 996, 997, 998, and 999.(3)Destination Area Distribution Center (DADC) Entered Mail.(i) A 1-day (overnight) service standard is applied to Periodicals pieces that qualify for a DADC rate and are properly accepted before the day-zero CET at the designated DADC, if the DADC and DSCF are co-located;(ii) A 2-day service standard is applied to Periodicals pieces that qualify for a DADC rate and are properly accepted before the day-zero CET at the designated DADC, if the DADC and DSCF are not co-located, unless the mail is entered at a DADC within the contiguous 48 states and destined outside the contiguous 48 states, or entered at the DADC in Puerto Rico and destined to the U.S. Virgin Islands, or destined to either American Samoa or the following 3-digit ZIP Code areas in Alaska (or designated portions thereof): 995 (5-digit ZIP Codes 99540 through 99599), 996, 997, 998, and 999;(iii) A 4-day service standard is applied to Periodicals pieces that qualify for a DADC rate and are properly accepted before the day-zero CET at the designated DADC, if they are entered at the DADC in Puerto Rico and destined to the U.S. Virgin Islands, or if they are destined to American Samoa or the following 3-digit ZIP Code areas in Alaska (or designated portions thereof): 995 (5-digit ZIP Codes 99540 through 99599), 996, 997, 998, and 999;(iv) An 11-day service standard is applied to Periodicals pieces that qualify for a DADC rate, are properly accepted before the day-zero CET at the designated DADC in the contiguous 48 states, and are destined to the 998 or 999 3-digit ZIP Code areas in Alaska.(4)Destination Network Distribution Center (DNDC)/Auxiliary Service Facility (ASF) Entered Mail.(i) A 2-day service standard is applied to Periodicals pieces that qualify for a DADC containerized rate, are properly accepted before the day-zero CET at the designated DNDC or ASF in the contiguous 48 states, and are destined within the contiguous 48 states, if the DADC and DSCF are co-located;(ii) A 3-day service standard is applied to Periodicals pieces that qualify for a DADC containerized rate, are properly accepted before the day-zero CET at the designated DNDC or ASF in the contiguous 48 states, and are destined within the contiguous 48 states, if the DADC and DSCF are not co-located;(iii) An 8- to 10-day service standard is applied to Periodicals pieces that qualify for a DADC containerized rate, are properly accepted before the day-zero CET at the designated DNDC or ASF in the contiguous 48 states, and are destined outside the contiguous 48 states, if the DADC and DSCF are co-located, with the specific standard being based on the number of days required for transportation outside the contiguous 48 states;(iv) A 9- to 11-day service standard is applied to Periodicals pieces that qualify for a DADC containerized rate, are properly accepted before the day-zero CET at the designated DNDC or ASF in the contiguous 48 states, and are destined outside the contiguous 48 states, if the DADC and DSCF are not co-located, with the specific standard being based on the number of days required for transportation outside the contiguous 48 states. 77 FR 31196 , May 25, 2012, as amended at 79 FR 4080 , Jan. 24, 2014; 79 FR 44701 , Aug. 1, 2014; 86 FR 43952 , Aug. 11, 2021