This Management Plan provides information about the history and purpose of the SDTMD. It details the types of programs and services that the SDTMD helps fund.In this comprehensive guide, we at EJP Law, PC will break down the essential differences between bylaws and operating agreements in California. Operating agreements are required for California LLCs, so you'll need to file yours with the state. 16.3 Entire Agreement. You may hear an LLC Operating Agreement referred to as LLC Bylaws or a Limited Liability Company Operating Agreement. Operating Agreements for Texas LLCs are a great tool, and you should definitely have one in place to govern your Series LLC, PLLC, or LLC. An operating agreement lays out the structure and rules governing an LLC. The the primary document of an LLC.