From the article:

U.S. Reps. Garret Graves, R-La. and Mark Pocan, D-Wis. made the announcement as co-chairs stating that they wish to protect “the integrity of these treasured venues … while enhancing their capabilities.”

…

Specifically, the caucus wants to target security enhancements, technological upgrades and create infrastructure upgrades for the stadiums, some of which are more than 120 years old.

The 18 stadiums:

• Beaver Stadium (Penn State)
• Camp Randall Stadium (Wisconsin)
• Cotton Bowl
• Davis Wade Stadium (Mississippi State)
• Franklin Field (Penn)
• Husky Stadium (Washington)
• Jordan-Hare Stadium (Auburn)
• Los Angeles Coliseum (USC)
• Memorial Stadium (California)
• Memorial Stadium (Clemson)
• Memorial Stadium (Illinois)
• Nippert Stadium (Cincinnati)
• Rose Bowl (UCLA)
• Spartan Stadium (San Jose State)
• Tiger Stadium (LSU)
• Vaught-Hemingway Stadium (Ole Miss)
• Wallace Wade Stadium (Duke)
• Yale Bowl (Yale)