The following sentence is in the IG:

Specifications for artifact distribution, including the use of NPM (Node Package Manager)

According to the creators of npm, npm is not an acronym for Node Package Manager. Refer to the following: 

https://github.com/npm/cli?tab=readme-ov-file#faq-on-branding

Recommend removing the acronym definition and using lower case for npm. If there is a need to provide what npm is, refer reader to npm documentation.