SEO Seals – Some SEOs are still attaching “seals” to official correspondence relating to Act 537 matters. The use of a “seal” on documents signed or written by an SEO implies that the seal is an official seal and that its use is authorized by the Commonwealth, which is not the case. SEO certification differs from a license issued by the Commonwealth to certain professionals such as engineers and geologists. Licensing statutes for professional engineers, geologists and certain other professions specifically authorize them to use seals and many laws and regulations require that such professionals attach their seals to various documents. An SEO in active status, on the other hand, is issued a certificate by the Department. There are no laws or regulations which require that a document be “sealed” by an SEO. Accordingly,do not attach a seal to an SEO’s official correspondence or in permitting actions.