What Form 4506-C is
The form's instructions say to use Form 4506-C to request tax return information through an authorized IVES participant, and that you designate that participant to receive the information on line 5a. The form also carries a caution: the tax transcript is sent to the third party entered on line 5a and/or 5d, so make sure lines 5 through 8 are complete before signing. RepeatForm cannot tell you whether you should sign one or who should receive your information.