My client has asked me to get some plans re-approved by the City so they can obtain a permit. The rule is that once plans are approved, construction must begin within one year or the approval signatures will expire and the plans must be re-submitted for approval. The plans were originally prepared and sealed by another engineer six years ago, but the client chooses not to use them this time for some reason. There are no design changes, but there will possibly be some minor changes required on the utility company's standard notes. Would it be a breach of ethics for me to make the required revisions on the original drawings and put my seal on them in addition to the original engineer's seal? The design is fine and meets all local requirements.