Nevada has one notice for the people below the prime contractor and one for the prime itself. The first reaches back 31 days from the day it is given; the second is due before the construction contract is even signed.
The Notice of Right to Lien (NRS 108.245): who gives it
"Every lien claimant, other than one who performs only labor or is a potential claimant under NRS 608.150" — except "a prime contractor or other person who contracts directly with an owner or sells materials directly to an owner" (108.245(1), (5)). No lien "may be perfected or enforced … unless the notice has been given" (108.245(3)).
Who receives it
The owner of the property, in person or by certified mail; "a subcontractor or equipment or material supplier who gives such a notice must also deliver in person or send by certified mail a copy of the notice to the prime contractor for information only" (108.245(1)).
The 31-day lookback
The notice may be given "at any time after the first delivery of material or performance of work or services"; the claimant "has a right to lien for materials or equipment furnished or for work or services performed in the 31 days before the date the notice of right to lien is given and … anytime thereafter until the completion of the work of improvement" (108.245(1), (6)). The section states no deposit-versus-receipt rule for a mailed notice, so mail early.
What it must say
The 108.245(1) form: NOTICE OF RIGHT TO LIEN; "To: (Owner's name and address)"; "The undersigned notifies you that he or she has supplied materials or equipment or performed work or services as follows: … for improvement of property identified as … under contract with …"; the sentence that this is not a notice that the claimant has not been paid; "(Claimant)". It "need not be verified, sworn to or acknowledged" (108.245(4)).
The prime contractor's notice (NRS 108.246)
"Each prime contractor shall, before execution of a contract for construction, inform the owner with whom the prime contractor intends to contract of the provisions of NRS 108.245 in substantially the following form" (108.246(1)), and deliver a copy to each subcontractor who participates in the project (108.246(2)). Failure "is a ground for disciplinary proceedings under chapter 624 of NRS" (108.246(3)) — the pinned text attaches no lien consequence.