In Texas, interested individuals can become "deputized" by their county to register voters and assume responsibility for delivering completed application forms to that county's elections department in a timely manner.
Because there is no online voter registration in Texas, it cannot be stressed enough how important this volunteer function is to helping citizens get registered to vote...and remain registered to vote...as many registered voters don't know that they must update their voter registration any time they move to a new address or change their name.
Read more from the Texas Secretary of State about being a Volunteer Deputy Voter Registrar.