US · guidance
CMS Pub. 100-06, ch. 6, § 180.1
Instructions for Completing the Carrier Performance Report - All
Trunks Busy (ATB)
(Rev. 175, Issued: 10-28-10, Effective: 04-01-11, Implementation: 04-04-11)
Each month the carrier prepares and submits to CMS Central Office (CO) page 13 of the Carrier
Performance Report - ATB. This report contains the monthly data for ATB, for both local and toll
free calls, the number of beneficiary calls answered in 120 seconds, and the total number of
beneficiary calls received.
It reports these statistics electronically by the 15th of the month following the reporting month
using the Medicare Contractor Reporting of Operational and Workload Data (CROWD) System at
the CMS Data Center (CDC). It enters data on the ATB report screen for each office that has been
assigned a separate carrier number.
History
(Rev. 175, Issued: 10-28-10, Effective: 04-01-11, Implementation: 04-04-11)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
771ece119df37ce4c1966e3208ef1340c51adc5f7330082aecc6c80caf2cb0ab
The link goes to the issuing authority’s own document — the one we read to produce this record. Where a source publishes whole titles rather than sections, your browser may need a moment to jump to the provision.
Unofficial copy of government-published law, reproduced from official sources with full provenance. Not an official publication; verify against official sources before relying on it in a filing. Records in the 'guidance' corpus, and only that corpus, are sub-regulatory (interpretive guidelines, survey procedures) and are not binding law. Validity bounds follow each jurisdiction's declared temporalBasis.