the pca has little doctrinal quarrel with the opc. both denominations have similar views on the federal vision, creation and justification. while most opc congregations allow women only to teach children and other women in sunday school, some moderate pca congregations allow women to do anything a non-ordained man can do. while the opc and the pca both adhere to the westminster standards, the opc is generally more strict in requiring its officers to subscribe to those standards without exception. it is hard to find any doctrinal differences between these two denominations. in recent years the opc and pca published substantial similar reports on the creation days, the debate about justification and the issue of the federal vision. they have identical positions on social issues like women in combat, freemasonry and abortion. the only divergence of any significance is the matter of charismatic gifts. the opc maintains a strict cessationist position, while the pca allows presbyteries to ordain non-cessationists if they do not believe that ongoing gifts are relevatory and they promise not to teach their distinctive views, but most pca presbyteries would refuse to ordain such a man. many pca churches have moved toward contemporary worship, while the opc is dominated by traditional reformed worship. the southern roots of the presbyterian church in america were tempered somewhat by the merger with the reformed presbyterian church, evangelical synod and the northern roots of the opc was also tempered by the influence of van til and kuyper. nonetheless, the two denominations enjoy fraternal relations and cooperate in a number of ways, such as sharing control of a publication company, great commission publications, which produces sunday school curricula for both denominations.