In California, 2021 legislation expanded transitional kindergarten (TK) to be universal for all 4-year-olds by 2025-26. This expansion will require an additional 11,900 to 15,600 credentialed teachers. Given projected workforce needs and historic investments in teacher preparation, early childhood-focused residencies can help districts strategically build TK teacher workforces. This brief describes two early childhood residency programs--Fresno's Teacher Residency Program and UCLA's IMPACT program--to help inform the development of strong early learning-focused residencies.