HB8634, titled the Consanguineous Marriage Prohibition Act of 2026, would amend federal law to prohibit marriages between people who are closely related by blood. The bill specifically changes the federal marriage definition in title 1 of the U.S. Code so that the referenced spouses must not be related by affinity or consanguinity within the degree of first cousin. In practical terms, it would create a nationwide federal restriction on marriages between close relatives, rather than leaving the matter entirely to state law.
The measure is framed as a direct statutory change to the federal definition of marriage for purposes of the cited code section. By inserting a kinship limitation into federal law, it would affect how marriages are recognized under that provision and could influence related federal determinations that rely on the statutory definition. The bill does not create a detailed enforcement scheme, penalties, or exceptions in the text provided; its main effect is to bar recognition of marriages within the prohibited family relationship category.
Impact
The bill would amend title 1 of the U.S. Code by adding a consanguinity restriction to the federal marriage definition, limiting marriages to individuals who are not related by blood or affinity within the degree of first cousin. This would alter federal statutory language and could affect federal recognition of marriages involving close relatives, while leaving broader state marriage and family-law regimes to interact with the new federal rule. The bill is narrow in scope and does not specify implementation procedures, enforcement mechanisms, or grandfathering provisions.
Sentiment
There is little recorded debate in the provided materials, and no committee transcript or vote history is available. Based on the bill’s referral status and the absence of recorded opposition or support, the available evidence suggests the measure was introduced and sent to the House Judiciary Committee without documented public controversy in the supplied record. Overall sentiment cannot be strongly inferred beyond the fact that the bill was formally introduced as a policy restriction on consanguineous marriage.
Contention
The main point of contention likely concerns whether marriage restrictions based on blood relation should be set at the federal level rather than left to the states, and whether the proposed cutoff at first cousins is the appropriate legal boundary. Potential supporters may view the bill as a public-policy or family-law safeguard, while potential opponents may argue it intrudes on state authority over marriage law or is unnecessary given existing state prohibitions. Because no committee discussion or votes are provided, specific named stakeholders or arguments are not documented in the record supplied.