At this point only the Jack-FMs in the US owned by Audacy, iHeartMedia and Midwest Communications are not using the nationally distributed playlist. Audacy in Los Angeles, Dallas and Minneapolis. iHeart in Seattle and Baltimore. Midwest in Nashville and Knoxville.
The original argreement between Sparknet and CBS Radio in the mid 2000s carved out the Top 40 markets to be locally customized with the rest required to utilized the then-satellite fed playlist. Some of those such as San Antonio have now gone to the national log as well.