Indoor dining was banned at Montgomery County restaurants this week after new rules went into effect on Tuesday night. Takeout, delivery and outdoor dining are still allowed, but tents on the sidewalk must keep at least one side entirely open and space their tables at least six feet apart. Also: No outside dining after 10 p.m. Retailers now have to cap traffic at one person per 200 square feet — maximum 150 people total — unless they get a waiver from the county. Update: On Friday (Dec. 18) the Restaurant Association of Maryland filed a legal challenge to executive orders prohibiting indoor dining in Montgomery County, Prince George’s County and Baltimore City. Stay tuned.