Specifications include, but are not limited to: STARS MTP Large Flat Tinted Window Envelopes (2-sided) - Quantity: 250M envelopes. Envelope Size: 9" x 12", Window Size: 4 ¼” x 1 ½”, Window Location: 7/8” from left edge, 2 3/4” from top edge, Flap Size: 1 ½” high. Description: To be printed two sides, (Ink Side 1: 647 blue / Ink Side 2: 647 blue & 363 green) on 24 lb. white wove recycled stock. Center seam. Hub flap with gummed adhesive. Envelopes must have the Maine Tax Portal logo on the open end flap. Centered. Proof Required: Vendor is to send PDF proof of envelope to Melissa.Devoid@maine.gov for approval. Packaging: Envelopes are to be packaged 250 per box,1500 per case for a total of 250,000 envelopes. STORAGE AND DELIVERY: Vendor is to provide storage of these envelopes for approx. one (1) year. Vendor will send 1 (one) pallet for the first order to the State Postal Center. Vendor is to confirm quantity and delivery date with agency prior to shipping order. Vendor is to deliver remaining envelopes to the State Postal Center as needed. The State Postal Center or Maine Revenue Services will contact vendor for delivery. Vendor is not to make any deliveries until confirming with the State Postal Center or Maine Revenue Services. NOTE: The State Postal Center is located at 85 Leighton Road in Augusta, Maine.