It is a possibility that Ft. Worth show in 2018 may have met the 4, 4, 4, 4 requirement, but no paperwork! I remember Howard Story showed a lot of self blue bantams.
The first requirement will be to identify a minimum of 5 people who have bred self blue bantams for a minimum of 5 years and maintained an APA membership for all 5 years. Then each one will need to sign an affidavit verifying that they are an APA member and raised the SB bantams for at least 5 years while maintaining an APA membership.
Once the ABC has this, the club will need to file a petition with the APA for recognition of the SB bantams and pay fee. Then there will have to be two pre-qualifying meet of
4, 4, 4, 4 (four head in each class of C, H, K, P) if the ABC records cannot prove that there has been some shows with those minimum requirements. There pre-qualifying meets can be at any APA show. They must be one year apart and completed in two years after the petition was filed. The two qualifying meets must be at an APA district show first, then at the assigned APA national show the last step. Most district APA directors will be at the national meet and they have the final approval.
Each judge will need to sign paper work verifying the 16 head and his/her approval of the variety recognition of the two pre-qualifying meets. There is more paper work for the qualifying two meets. This is a challenging and fun process. I had the privilege of being on the team with the large fowl. I do not know the process for the ABA, but it should be very similar. I know that it is recommended by the APA to file for recognition with both clubs ABA and APA at the same time.