TTDR shipment information and central office hours Wednesday, June 14, 2023 The CCTG Central Offices will operate with limited coverage on Friday, June 30 and will be closed on Monday July 3, 2023 for the Canada Day statutory holiday. Regular hours will resume July 4 at 8:30 am (EDT). CCTG Tumour Tissue Data Repository will also be closed on Friday, June 30 and Monday, July 3, 2023. Frozen samples cannot be shipped to TTDR any later than June 27, 2023 regular shipping can resume on July 04. keep frozen samples in your -80 freezer until you can ship on the July 4th. Ambient samples cannot be shipped to TTDR any later than June 28, 2023 regular shipping can resume on July 4th. keep ambient samples at room temperature until you ship on July 4th. Ambient samples that are to be shipped elsewhere (other than TTDR at Queen's) can be shipped as normal.