Proponent Law and Legal Definition

Proponent means a party who puts forward a legal instrument for consideration or acceptance. The term is commonly used to refer to a person who offers a will for probate.

The term ‘proponent’ can also be used to refer to a person who puts forward a proposal. One who argues or favors something. For example, a proponent of animal cruelty.

The following is an example of a federal regulation defining the term:

Proponent means any person who submits a land use proposal, either on his/her own initiative or in response to a notice for submission of such proposals. [43 CFR 2920.0-5].