Document Excerpt

This notice sets forth the 2019 Required Amendments List (2019 RA List). Beginning with the 2019 RA List, all Required Amendments Lists (RA Lists) will apply to both Individually Designed Plans qualified under § 401(a) (qualified individually designed plans) and individually designed plans that satisfy the requirements of § 403(b) (§ 403(b) individually designed plans).

Link
https://www.irs.gov/pub/irs-drop/n-19-64.pdf