The Authorized Signatory (AS) varies depending on your area of operational need. The property manager, hangar owner, hangar lessee, or the chief administrative officer is usually the AS for tenants and based business partners. For professional services, contractors, and service providers, your AS will be the project manager, or the department head authorizing the work or services. If your business with Paine Field Airport does not fit into any one of these categories, please contact the credentialing office at 425-388-5125.