The document API STD 5MIF:2025 outlines essential guidelines for implementing mechanical interference fit joints during the assembly phase of API 5L piping, following the pipe’s manufacture. The standard defines the mechanical interference fit joints as a set of uniform characteristics designed to facilitate their adoption by both connection producers and consumers. It serves as a foundational reference to inform end-users, manufacturers of connections, and suppliers about the key attributes of the technology. The primary audience for this standard is project engineers, who use it to assess mechanical interference fit joints for pipeline projects and designs. It is not intended to serve as a specification for procuring equipment. The standard API STD 5MIF:2025 does not inhibit suppliers or manufacturers from proposing alternative equipment or engineering solutions to customers. There may be supplementary requirements beyond those specified in the document, which are necessary for certain applications, especially those involving cutting-edge or emerging technologies.