W. Va. Code § 30-13-16
(c) Every registrant shall obtain a seal for use in identifying his or her official professional work. The design of the seal shall be determined by the board and shall bear the registrant's name, registrant's registration number, the legend "registered professional engineer, state of West Virginia" and such other words or figures as the board may prescribe. The seal may be a rubber stamp. Whenever the seal is applied, the registrant's written signature shall be adjacent to or across the seal. No further words or wording are required. A facsimile signature is not acceptable. Whenever presented to a client or any public or governmental agency, the seal, signature and date shall be placed on all specifications, reports, drawings, plans, design information and calculations in accordance with rules promulgated by the board. The seal and signature shall be used by registrants only when the work being stamped was under the registrant's complete direction and control.
In the case of a registrant of another state using a temporary permit issued by this state, the registrant shall use the state of permanent registration seal and shall affix his or her signature and temporary permit number to all work. In the case of a registrant checking the work of an out-of-state registrant, the state registrant shall completely check and have complete dominion and control of the design. The complete dominion and control includes possession of the sealed and signed reproducible construction drawings with complete signed and sealed design calculations indicating all changes in design.