 Prior to the formation of the said conference, the league had two import-laced conferences known as the PBA Commissioner's Cup (with an import height-limit of ), and the PBA Governor's Cup (with an import height-limit of ).However, in 2003, the two conferences were scrapped and was replaced with an Invitational tournament, with an All-Filipino local squad along with foreign teams) and an import-laced Reinforced Conference.But, in 2004, the league changed its calendar from a calendar year to a fiscal year.