When Michigan announced the most expansive foray into satellite camps undertaken by a program nationally, the seven-state tour was heavily promoted by the Wolverines' official football Twitter handle with an image of a maize-and-blue map and a jet emblazoned with the university's Block M.

But thanks to a recent interpretation by the NCAA Interpretations Committee, that tweet is now long gone from cyberspace, and so are any other social media engagements from schools promoting non-institutional camps.

The NCAA academic and membership affairs staff issued an interpretation on May 1 that says coaches should not play any role in developing the promotional materials or promoting the non-institutional camp or clinic online, via social media or in recruiting correspondence.

The NCAA will allow a coach who is employed at a non-institutional camp to have his quotations and likeness used in promotional materials, but the days of recruiters encouraging prospects to attend these camps via social media and through direct mailings are over.

The Pac-12 Conference said on the compliance section of its website that the new stance is "very restrictive compared to what had been previously occurring."

Satellite camps have been a topic of national conversation this spring in college football, especially after Michigan announced its nine-camp Summer Swarm Tour that caused an uproar among ACC and SEC coaches.

Satellite camps allow college coaches to travel long distances to work as guests at camps hosted by other institutions, but some in college football believe the camps allow some programs to skirt NCAA rules that prohibit colleges from hosting camps outside a 50-mile radius of their campuses.

ACC and SEC rules prohibit their coaches from stepping outside the 50-mile radius, even if invited as guests.