The National Institute of Standards and Technology (NIST) is issuing a competitive, full‑and‑open IDIQ solicitation for large‑tier electrical construction services across its Gaithersburg, MD campus. The contract will have a five‑year ordering period, with a minimum total order value of $5,000 and a ceiling of $73,788,828 for all task orders combined. Work includes demolition, installation, modification, testing, and repair of a wide range of electrical systems: branch circuits (120 V‑208 V up to 13.8 kV), medium‑voltage distribution, transformers, switchgear, UPS, busways, generators, direct‑digital controls, life‑safety systems, interior/exterior lighting, and associated conduit and wiring work. Offers are evaluated in two phases; Phase 1 must meet bonding capacity ($20 M per contract, $70 M aggregate) and Phase 2 evaluates technical capability, management plan, past performance, price, and subcontracting plans. No incumbent exists, and the first task order will be awarded shortly after IDIQ award.