You must change your password every 120 days. Passwords must be 6 to 14 characters long.
Passwords can contain letters, numbers, and symbols.
Good passwords are ones that cannot be readily guessed by someone else. Create passwords that you will be able to remember. With a little creativity, you can combine letters and numbers that have special significance to you but that others would have a hard time guessing. You can also spell a word wrong, put numbers in the middle of a word, put another word in the middle of a word, etc. Keep it impersonal.