The Princeton Plasma Physics Laboratory is issuing draft procurement documents for the manufacture of the main Upper Wide Angle Viewing diagnostic subsystems for ITER. This is an advance notice to allow potential suppliers to review information and prepare for future proposals. The organization expects to issue three formal Requests for Proposals by May 2026. Voluntary comments or questions on the draft documents, especially to improve clarity, are invited via email. No budget, specific performance location, or immediate response is required to remain eligible for the future RFPs.