{"data":{"id":"us/40-cfr-appendix-ii-to-part-86","jurisdiction":"us","citation":"40 CFR Appendix II to Part 86","heading":"Appendix II to Part 86—Temperature Schedules","body":"(a) Ambient temperature cycle for the diurnal emission portion of the evaporative emission test (see § 86.133).\nTable I—Temperature Versus Time Sequence\nUse linear interpolation between hourly temperatures\nTime (min) Temp. (°F) Time (min) Temp. (°F) Time (min) Temp. (°F)\n0 72.0 60 72.5 120 75.5\n180 80.3 240 85.2 300 89.4\n360 93.1 420 95.1 480 95.8\n540 96.0 600 95.5 660 94.1\n720 91.7 780 88.6 840 85.5\n900 82.8 960 80.9 1020 79.0\n1080 77.2 1140 75.8 1200 74.7\n1260 73.9 1320 73.3 1380 72.6\n1440 72.0 1500 72.5 1560 75.5\n1620 80.3 1680 85.2 1740 89.4\n1800 93.1 1860 95.1 1920 95.8\n1980 96.0 2040 95.5 2100 94.1\n2160 91.7 2220 88.6 2280 85.5\n2340 82.8 2400 80.9 2460 79.0\n2520 77.2 2580 75.8 2640 74.7\n2700 73.9 2760 73.3 2820 72.6\n2880 72.0 2940 72.5 3000 75.5\n3060 80.3 3120 85.2 3180 89.4\n3240 93.1 3300 95.1 3360 95.8\n3420 96.0 3480 95.5 3540 94.1\n3600 91.7 3660 88.6 3720 85.5\n3780 82.8 3840 80.9 3900 79.0\n3960 77.2 4020 75.8 4080 74.7\n4140 73.9 4200 73.3 4260 72.6\n4320 72.9","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"632bef6b5c428b54b17c88756b97c08c2d651dd160b849ab759b9f43703501dc","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-appendix-i-to-part-86","next":"us/40-cfr-appendix-iii-to-part-86"},"notice":"GroundRules: Original legal text. Not legal advice."}