The Nevada Letter for Essential Services Nonrefillablele Form is a document that provides proof of essential services status in the state of Nevada. This form is used to verify that an individual is employed or engaged in an essential service and is required to travel to and from the state of Nevada. The form is not fillable, so it must be printed, signed, and notarized before submission. The Nevada Letter for Essential Services Nonrefillablele Form is available in two versions, based on the type of service being provided: 1) for Essential Services in Support of Critical Infrastructure and 2) for Essential Services in Support of Critical Businesses. Both versions of the form require the individual's name, address, social security number, signature, and the notarized signature of a witness.