All,

The City of Henderson has been working closely with Southern Nevada Water Authority, the LVVWD, and other's to revise the codes enacted in other jurisdictions to incorporate changes regarding evaporative cooling. With these changes, the COH will be amending their mechanical code. The COH will be introducing a bill at the January 17th city council meeting.

  • The bill can be found in the city council meeting agenda listed under agenda item 36, Bill No. 3695, Amending Henderson Municipal Code Chapter 15.24 Mechanical Code.
  • The agenda for the meeting can also be found here.
  • A summary sheet for item 36 can be found here.
  • You can also find the municipal code change here.

Some information to consider while the changes occur:

  • The requirements are the same as they are in LVVWD service rules that were enacted on November, 11 2022. LVVWD Agendas & Minutes
  • To be exempt from the new requirements, a new submittal for a mechanical or building permit using evaporative cooling or cooling towers must meet all of the following:
  • Submit plans and applications for prior to September 1, 2023.
  • Receive permit approval/issuance prior to February 1, 2024.
  • Receive either a successful final inspection, temporary certificate of occupancy or final certificate of occupancy prior to February 1, 2026.
  • Tenant improvements in shell buildings (where the shell building complies with item 2 above) may utilize evaporative cooling as part of the tenant improvement permit process.
  • To be exempt from the new requirements an existing system can remain as is or be replaced/modified as long as the change does not increase water consumption.


If you have any question regarding these new changes contact Lynn Nielson at:

  • 702-267-3635.
  • Lynn.Nielson@cityofhenderson.com