{"data":{"id":"us/36-cfr-1237.18","jurisdiction":"us","citation":"36 CFR 1237.18","heading":"What are the environmental standards for audiovisual records storage?","body":"(a) Photographic film and prints. The requirements in this paragraph apply to permanent, long-term temporary, and unscheduled audiovisual records.\n(1) General guidance. Keep all film in cold storage following guidance by the International Organization for Standardization in ISO 18911 (incorporated by reference, see § 1237.3). See also ISO 18920 (incorporated by reference, see § 1237.3).\n(2) Color images and acetate-based media. Keep in an area maintained below 40 degrees Fahrenheit with 20-40% relative humidity to retard the fading of color images and the deterioration of acetate-based media.\n(b) Digital images on magnetic tape. For digital images stored on magnetic tape, keep in an area maintained at a constant temperature range of 62 degrees Fahrenheit to 68 degrees Fahrenheit, with constant relative humidity from 35% to 45%. See also the recommendations in ISO 18923 (incorporated by reference, see § 1237.3); and the requirements for electronic records storage in 36 CFR 1236.28.\n(c) Digital images on optical media. For permanent, long-term temporary, or unscheduled digital images maintained on optical media (e.g., CDs, DVDs), use the recommended storage temperature and humidity levels stated in ISO 18925 (incorporated by reference, see § 1237.3).","path":["Title 36—Parks, Forests, and Public Property","CHAPTER XII—NATIONAL ARCHIVES AND RECORDS ADMINISTRATION","SUBCHAPTER B—RECORDS MANAGEMENT","PART 1237—AUDIOVISUAL, CARTOGRAPHIC, AND RELATED RECORDS MANAGEMENT"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-36.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:44Z","sha256":"ccc5811084a6b16b5a2c38c9d61c938190c9f26e086a1872d41c34ccf523960f","source_id":"us-cfr","stale":true,"prev":"us/36-cfr-1237.16","next":"us/36-cfr-1237.20"},"notice":"GroundRules: Original legal text. Not legal advice."}