"Can I use a distance measuring device in a competition?
The use of distance measuring devices during a stipulated round remains contrary to the Rules of Golf; however a Committee can permit the use of distance measuring devices via a Local Rule...."
Register
double sigh
Did *you* read the Rules before posting?
FAQ #6 under Rule 14-3, online.
"Can I use a distance measuring device in a competition?
The use of distance measuring devices during a stipulated round remains contrary to the Rules of Golf; however a Committee can permit the use of distance measuring devices via a Local Rule...."