Exhibit 3.1

Secretary of State P.O. Box 13697 Austin, TX 78711-3697 FAX: 512/463-5709 Filing Fee: $300 Certificate of Formation Limited Liability Company Filed in the Office of the Secretary of State of Texas Filing #: 803697067 07/24/2020 Document#:985263620002 Image Generated Electronically for Web Filing Article 1 - Entity Name and Type The filing entity being formed is a limited liability company. The name of the entity is: TAT Merger Sub LLC Article 2 - Registered Agent and Registered Office A. The initial registered agent is an organization (cannot be company named above) by the name of: OR B. The initial registered agent is an individual resident of the state whose name is set forth below: Name: Michael S. Haynes C. The business address of the registered agent and the registered office address is: Street Address: 16803 Dallas Parkway Suite 200 Addison TX 75001 Consent of Registered Agent A. A copy of the consent of registered agent is attached. OR B. The consent of the registered agent is maintained by the entity. Article 3 - Governing Authority A. The limited liability company is to be managed by managers. OR B. The limited liability company will not have managers. Management of the company is reserved to the members. The names and addresses of the governing persons are set forth below: Manager 1: (Business Name) TAT Holdco LLC Address: PO Box 1989 Addison TX, USA 75001 Article 4 – Purpose The purpose for which the company is organized is for the transaction of any and all lawful business for which limited liability companies may be organized under the Texas Business Organizations Code. Supplemental Provisions / Information

[The attached addendum, if any, is incorporated herein by reference.] Organizer The name and address of the organizer are set forth below. Michael S. Haynes 16803 Dallas Parkway. Suite 200. Addison. TX 75001 Effectiveness of Filing A. This document becomes effective when the document is filed by the secretary of state. OR B. This document becomes effective at a later date, which is not more than ninety (90) days from the date of its signing. The delayed effective date is: Execution The undersigned affirms that the person designated as registered agent has consented to the appointment. The undersigned signs this document subject to the penalties imposed by law for the submission of a materially false or fraudulent instrument and certifies under penalty of perjury that the undersigned is authorized under the provisions of law governing the entity to execute the filing instrument. Michael S. Haynes Signature of Organizer FILING OFFICE COPY