Proposed changes to various federal rules of practice include some that affect amicus practice. From the comments posted and other commentary, it may be fair to say these proposals are somewhat controversial.
The proposed changes to Fed. R. App. P. 29 broadly involve two subjects. The first subject relates to securing permission to file an amicus brief. The second subject involves new disclosure rules aimed at persons or entities supporting amicus filings. A new word count limitation is also proposed.
The "permission" changes would no longer permit an amicus brief to be filed if the parties consent. Instead, all non-government amicus filers would need to move for permission to file, describing why the brief would be helpful and how it serves the following "purpose":
An amicus curiae brief that brings to the court's attention relevant matter not already mentioned by the parties may help the court. An amicus brief that does not serve this purpose - or that is redundant with another amicus brief - is disfavored.
Proposed Rule 29(a)(2).
The "disclosure" changes are somewhat involved, so I won't attempt too much detail here. These proposed rules do attempt to ascertain whether a party or its counsel have any majority interest in or control over the amicus filer. They also require disclosure of certain contributions to the amicus filer. Membership in the amicus filer may need to be disclosed in certain instances. The Advisory Committee note accompanying these disclosure proposals states that "the Committee thinks that some disclosures about an amicus are important to promote the integrity of court processes and rules."
Finally, the word count requirement is changed to limit amicus briefs to no more than 6,500 words, absent court permission to file a longer brief.
The text of the proposed amendments, along with the Advisory Committee's report, can be found here: preliminary_draft_of_proposed_amendments_2024.pdf Some of the comments on these proposals are worth your time for understanding the arguments for and against them, including the First Amendment right to associate implications; these comments are here: Regulations.gov The Federalist Society summarizes these proposed rules - critically - here: Proposed Amendments to the Amicus Process Are a Solution in Search of a Problem | The Federalist Society
Comments on these proposals may be submitted no later than February 17, 2025.