Winter Hats for Women
• Women may wear hats at formal teas, luncheons, and wedding ceremonies or receptions.
• Women do not take fashion hats off during the National Anthem, however they must take off men's-style baseball caps, trucker hats, etc.
• Women are allowed to take off their hats, if they wish, in any of these circumstances.
Women's Hats in Restaurants
A woman may wear a hat in a restaurant during the day. Actually, up until mid-century, a woman would not consider going outside in public without a hat. Therefore, she would, almost, never consider taking her topper off in a restaurant. (See movies from the 1940s for reference.)