The Obama administration is ending months of delay with the signing of the first-ever treaty regulating the global arms trade. The pact was approved earlier this year after the White House initially blocked it until after President Obama’s bid for re-election. The treaty will have no impact on domestic gun laws, but will bring new regulations to the sales of conventional arms. Secretary of State John Kerry is expected to add the U.S. signature today at the U.N. General Assembly. But it will still face a tough ratification vote in the Senate, where it will need two-thirds support for approval. The National Rifle Association is expected to continue its vocal campaign for the treaty’s rejection. In a statement, Amnesty International welcomed the U.S. signature as “a milestone towards ending the flow of conventional arms that fuel atrocities and abuse.”