The Presbyterian Church (U.S.A.) [a.k.a. PCUSA] is a mainline Christian denomination
in the U.S.
Its name is often confused with the Presbyterian Church in America [a.k.a. PCA]. The PCA is a smaller
and much more conservative denomination. It split from the PCUSA decades ago because it could not accept the concept of female clergy. The PCA's beliefs and practices concerning lesbian, gay and bisexual ordination
are discussed in a separate essay.
The delegates also approved an amendment to the denomination's definition of marriage in their Book of Order. It recognized marriage by both same-sex and opposite-sex couples. The change was sent to the individual presbyteries for ratification. By 2015-MAR, the majority of presbyteries had approved of the amendment.
Within U.S. Presbyterian denominations:
A session is sometimes called a consistory or church board. It is a body of elected elders governing a local congregation.
A presbytery is an administrative body within the denomination including all the local congregations within a defined geographical area. There are often more than one presbytery in a state.