Zip codes are optional. If the signer is a resident of a second or third class municipality, a post office box number may be used in lieu of a street address. Second and third class municipalities are those with less than 5000 population. Each signature line must show the month, day and year it was signed. Numbers to designate the month are permissible.
Abbreviations commonly used are also acceptable.
The county of the signer's voter registration must be included. The date, address, county of registration, and printed name may be added by the circulator prior to the petition being filed. Ditto marks may not be used. It is prudent to submit any petition to the filing authority with ample time prior to the deadline to allow you to collect additional signatures if there are not sufficient valid signatures presented on your initial petition.