Add a United States PTIN module
Add a United States PTIN module

A Preparer Tax Identification Number (PTIN) is United States
identification number for tax return preparers. It is an eight-digit
number prefixed with a capital P.

holvi/python-stdnum,dchoruzy/python-stdnum,arthurdejong/python-stdnum,t0mk/python-stdnum,arthurdejong/python-stdnum,holvi/python-stdnum,arthurdejong/python-stdnum,holvi/python-stdnum,tonyseek/python-stdnum