
Quoting
Minimum recertification period when no minimum duration of capacity is specified in the medical certification
[P]rovided the recertification is requested in connection with an absence[,] Section 103(e) of the FMLA states the employer may require subsequent recertifications “on a reasonable basis.” The FMLA regulations at §825.308(a) limit recertification for pregnancy, chronic, or permanent/long-term serious health conditions, when no minimum duration of incapacity is specified on the medical certification (as discussed in §825.308(b)), to no more often than every 30 days, provided the recertification is done only in connection with an absence. If circumstances have changed significantly, or the employer receives information which casts doubt upon the continuing validity of the certification, recertification may be requested more frequently than every 30 days.