For several months breastfeeding advocacy groups and the Pharmaceutical and Health Care Association of the Philippines (PHAP) have been at loggerheads over the implementation of the Revised Implementing Rules and Regulations (RIRR) of Executive Order No 51, known as the Milk Code, which was to take effect on July 7 2006. However, the PHAP filed a petition for certiorari before the Supreme Court (GR No 173034) against Department of Health (DOH) officials, questioning the constitutionality of the RIRR, claiming it was inconsistent with the Milk Code that was issued on October 28 1986. The DOH secured a temporary restraining order enjoining the DOH from implementing the RIRR.