How long before the expiration of the driver's license should one apply for renewal?

[McEli]

Driver's licenses are valid for 6 years, 10 years, or indefinitely. Generally, one can apply for renewal within 3 months before the expiration of the driver's license. The required documents for renewing a driver's license are as follows: 1. Three 1-inch white background bareheaded photos, motor vehicle physical condition certificate, application form, with one each required for the new license. 2. Original ID card and one copy. 3. Physical examination form, which must be machine-printed. 4. "Motor Vehicle Driver's License Application Form" and the original driver's license. Additional information: If the license has expired for less than a year, it can be renewed normally; if expired for more than one year but less than three years, the license will be revoked; if expired for more than three years, the license will be invalid and cannot be renewed.