100 feet is the minimum.
100
I haven't read a driver's manual for years, but yes, as far as I know drivers in Indiana are required to signal before turning.
before you get to the turning point ! ! haha
100 feet
100ft
100 ft
When turning you should signal during the last 100 feet before a stop sign. This is courteous to all drivers around you.
100ft
500 feet
300 feet.
100 yards
100 ft ahead