What projects require an engineer or architects stamp on the drawings?

The State of Nebraska Engineers and Architects Act provides the guidelines as to which projects requires professionally prepared and stamped drawings.  To determine whether or not the project requires stamped drawings, the Occupancy Classification and square footage of the project need to be established. There are different types of occupancy which are determined by what the space will be used for. Each Occupancy Classification has a different allowable square footage that may be constructed, reconstructed, or impacted before engineered or architectural drawings are required. 

For example, a convenience store is a Class M (Mercantile) occupancy and would not require stamped drawings if it is under 3000ft². A restaurant is a Class A-2 (Assembly) occupancy and does not require stamped drawings if it is under 1000ft². The Building Official may require professionally prepared and stamped drawings even if the project is exempted by the Act.  Other than the requirement for stamped drawings, the other details that change with different occupancy categories are items such as the number of bathrooms, the number of exits, ADA requirements, etc. A copy of the Engineers and Architects Act may be found here:

Engineers and Architects Handbook

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1. What is the purpose of zoning?
2. What can I do if I receive a nuisance violation notice?
3. When do I need a building permit?
4. What type of work requires drawings?
5. What projects require an engineer or architects stamp on the drawings?
6. What is the difference between an architect and an engineer?
7. How does the City do inspections of permitted work?
8. What type of inspections are required?
9. If I wanted an inspection of a building before purchasing it, who would I contact to have that done?
10. Does the City require an inspection of an existing building before doing work to it?