Theory of everything differ both from gravity and from electromagnetism. A further hurdle was the acceptance that in a TOE, quantum mechanics had to be incorporated from the start, rather than emerging as a consequence of a deterministic unified theory, as Einstein had hoped. Gravity and electromagnetism could always peacefully coexist as entries in a list of classical forces, but for many years it seemed that gravity could not even be incorporated into the quantum framework, let alone unified with the other fundamental forces. For this reason, work on unification, for much of the twentieth century, focused on understanding the three "quantum" forces:
Unified Fire Authority contract cities in addition to the Unincorporated Salt Lake County. These cities wanted to play a more active role in the fire administration. In 2004, the department ceased operation as a County government entity and became the Unified Fire Authority. The Unified Fire Authority is the sponsoring agency of Urban Search and Rescue Utah Task Force 1, one of the 28 FEMA Urban Search and Rescue Task Forces in the United States. Managed daily by full-time staff of Unified Fire under the direction of the Federal Emergency Management Agency - Urban Search & Rescue, Response Directorate/Operations Division. Adopted Budget 2017