Unburdening the undue burden standard: orienting Casey in constitutional jurisprudence.

The Supreme Court's decision in Casey states that an undue burden standard should be used to decide the constitutionality of abortion laws but fails to establish a test for this standard. The undue burden standard is best approached with a methodology that checks for facially undue burdens and an underlying purpose of burden. A rationality review and a study of the effects of regulations on all women, especially the poor and the young, should also be part of the test for establishing undue burden.