Do I need a medical center's seal/signature to submit my immunizations?

<p>Hello everyone,</p>

<p>I was wondering whether I needed a seal or signature as confirmation from my medical center regarding the submission of my immunization records? I can't see it being required in the forms (except for the Medical Exemption field), even though I've had to validate it with a seal in other uses before.</p>

<p>Can anyone please confirm and let me know? I already spoke with my doctor but I am not too sure whether he actually has to sign anything or not.</p>

<p>Thank you.</p>