Genetic Evaluation Schedules
CDCB releases genetic evaluations at various times - weekly, monthly, and triannually - to best serve the diverse needs of animal owners and stakeholders. CDCB, data partners, and genomic nominators work diligently to meet these deadlines to expedite genetic and genomic evaluations for all relevant animals.
Learn More about Types of CDCB Evaluations
2026 Genetic Evaluation Schedule
January 2026 genomic evaluations
| December 22, 2025 | International genotype exchange data due (for CDDR exchange partners) |
| December 26, 2025 | Genomic data due |
| January 6, 2026 | Evaluation release (8 a.m. ET) |
January 2026 interim summaries for progeny-test bulls
| January 9, 2026 | Pedigree [format 1], lactation [formats 4 and 14], and AI-update [format 395] data due at CDCB (12 a.m. ET) |
| January 13, 2026 | Evaluation release (target date: data files available for downloading) |
February 2026 genomic evaluations
| January 19, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| January 23, 2026 | Genomic data due |
| February 3, 2026 | Evaluation release (8 a.m. ET) |
March 2026 genomic evaluations
| February 16, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| February 20, 2026 | Genomic data due |
| March 3, 2026 | Evaluation release (8 a.m. ET) |
April 2026 official evaluations
| February 27, 2026 | Calving ease data [format CES] (12 a.m. ET) |
| March 5, 2026 | Pedigree [format 1], lactation [formats 4 and 14], reproductive-event [format 5], health-event [format 6], milking-speed [format 8], bull-owner [format 2], herd-owner [format 2], type [format 7] for breeds other than Holstein, recessive codes [format REC], and AI-update [format 395] data due at CDCB (12 a.m. ET) |
| March 17, 2026 | Type evaluations for breeds other than Holstein available for downloading to respective breed associations |
| April 3, 2026 | Password-protected CDCB official evaluation files [formats 38 and 105] and herd-owner ID file [format 2] available for downloading (target 1 p.m. ET) |
| April 7, 2026 | Evaluation release (password 7 a.m. ET; web queries shortly after password release) |
| April 9, 2026 | Active A.I., foreign, and sorted lists and updated bull status codes posted (target 1 p.m. ET) |
April 2026 genomic evaluations
| March 16, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| March 20, 2026 | Genomic data due |
| April 7, 2026 | Evaluation release (8 a.m. ET) |
May 2026 genomic evaluations
| April 20, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| April 24, 2026 | Genomic data due |
| May 5, 2026 | Evaluation release (8 a.m. ET) |
May 2026 interim summaries for progeny-test bulls
| May 8, 2026 | Pedigree [format 1], lactation [formats 4 and 14], and AI-update [format 395] data due at CDCB (12 a.m. ET) |
| May 12, 2026 | Evaluation release (target date: data files available for downloading) |
June 2026 genomic evaluations
| May 18, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| May 22, 2026 | Genomic data due |
| June 2, 2026 | Evaluation release (8 a.m. ET) |
July 2026 genomic evaluations
| June 22, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| June 26, 2026 | Genomic data due |
| July 7, 2026 | Evaluation release (8 a.m. ET) |
August 2026 official evaluations
| July 3, 2026 | Calving ease data [format CES] (12 a.m. ET |
| July 9, 2026 | Pedigree [format 1], lactation [formats 4 and 14], reproductive-event [format 5], health-event [format 6], milking-speed [format 8], bull-owner [format 2], herd-owner [format 2], type [format 7] for breeds other than Holstein, recessive codes [format REC], and AI-update [format 395] data due at CDCB (12 a.m. ET) |
| July 21, 2026 | Type evaluations for breeds other than Holstein available for downloading to respective breed associations |
| August 7, 2026 | Password-protected CDCB official evaluation files [formats 38 and 105] and herd-owner ID file [format 2] available for downloading (target 1 p.m. ET) |
| August 11, 2026 | Evaluation release (password 7 a.m. ET; web queries shortly after password release) |
| August 13, 2026 | Active A.I., foreign, and sorted lists and updated bull status codes posted (target 1 p.m. ET) |
August 2026 genomic evaluations
| July 20, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| July 24, 2026 | Genomic data due |
| August 11, 2026 | Evaluation release (8 a.m. ET) |
September 2026 genomic evaluations
| August 17, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| August 21, 2026 | Genomic data due |
| September 1, 2026 | Evaluation release (8 a.m. ET) |
September 2026 interim summaries for progeny-test bulls
| September 4, 2026 | Pedigree [format 1], lactation [formats 4 and 14], and AI-update [format 395] data due (12 a.m. ET) |
| September 8, 2026 | Evaluation release (target date: data files available for downloading) |
October 2026 genomic evaluations
| September 21, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| September 25, 2026 | Genomic data due |
| October 6, 2026 | Evaluation release (8 a.m. ET) |
November 2026 genomic evaluations
| October 19, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| October 23, 2026 | Genomic data due |
| November 3, 2026 | Evaluation release (8 a.m. ET) |
December 2026 official evaluations
| October 23, 2026 | Calving ease data [format CES] (12 a.m. ET) |
| October 29, 2026 | Pedigree [format 1], lactation [formats 4 and 14], reproductive-event [format 5], health-event [format 6], milking-speed [format 8], bull-owner [format 2], herd-owner [format 2], type [format 7] for breeds other than Holstein, recessive codes [format REC], and AI-update [format 395] data due at CDCB (12 a.m. ET) |
| November 10, 2026 | Type evaluations for breeds other than Holstein available for downloading to respective breed associations |
| November 27, 2026 | Password-protected CDCB official evaluation files [formats 38 and 105] and herd-owner ID file [format 2] available for downloading (target 1 p.m. ET) |
| December 1, 2026 | Evaluation release (password 7 a.m. ET; web queries shortly after password release) |
| December 3, 2026 | Active A.I., foreign, and sorted lists and updated bull status codes posted (target 1 p.m. ET) |
December 2026 genomic evaluations
| November 9, 2026 | International genotype exchange data due (for CDDR exchange partners) |
| November 13, 2026 | Genotype data due |
| December 1, 2026 | Evaluation release (8 a.m. ET) |