The Riverdale Park Mayor and Town Council are set to hold a legislative session tonight (Monday) at 8 p.m. at Town Hall. Here's a look at what's on the agenda:

• Mayor Vernon Archer will present a proclamation honoring Northwestern High School teacher Christine Wilson.
• Council members will discuss and possibly take action on a revised detailed site plan for the University of Maryland's M Square Research Park and a permit application to replace a chain link fence with a wooden fence at 6305 45th Pl.
• Members will discuss and possibly take action on revisions to the town's new ethics ordinance. State authorities recommended several technical wording changes after reviewing the language of the ordinance.
• Members will discuss and possibly take action on the mayor's nominations to the Ethics Board.
• Members will discuss and possibly on a market study from the Hyattsville Community Development Corporation.