_id	Year	Cars	Light Trucks	Combined Cars and Light Trucks
1	""	""	Average Required Fuel Economy	
2	""	""	(miles per gallon)	
3	2017.0	39.0	29.4	34
4	2018.0	40.4	30.0	34.89999999999999857891452847979962825775146484375
5	2019.0	41.9	30.5	35.7999999999999971578290569595992565155029296875
6	2020.0	43.6	31.1	36.89999999999999857891452847979962825775146484375
7	2021.0	44.2	31.6	36.89999999999999857891452847979962825775146484375
8	2022.0	44.9	32.1	36.89999999999999857891452847979962825775146484375
9	2023.0	45.6	32.6	36.89999999999999857891452847979962825775146484375
10	2024.0	46.3	33.1	37
11	2025.0	47.0	33.6	37
12	2026.0	47.7	34.1	37
13	""	Average Projected Emissions Compliance Levels under	""	
14	""	the Footprint-based Carbon Dioxide Standards	""	
15	""	""	(grams per mile)	
16	2017.0	220.0	306.0	254
17	2018.0	209.0	293.0	244
18	2019.0	197.0	281.0	236
19	2020.0	187.0	268.0	227
20	2021.0	178.0	257.0	241
21	2022.0	175.0	253.0	241
22	2023.0	171.0	250.0	241
23	2024.0	168.0	248.0	241
24	2025.0	167.0	245.0	240
25	2026.0	165.0	240.0	240
26	""	""	""	
27	Note:  The presented rates of increase in stringency for NHTSA CAFE standards are lower than the Environmental Protection Agency (EPA) rates of increase in stringency for greenhouse gas (GHG) standards. One major difference is that NHTSA’s standards, unlike EPA’s, do not reflect the inclusion of air conditioning system refrigerant and leakage improvements, but EPA’s standards would allow consideration of such improvements which reduce GHGs but generally do not affect fuel economy. The agencies expect, however, that a portion of these improvements will be made through reductions in air conditioning leakage, which would not contribute to fuel economy.	""	""	
28	""	""	""	
29	""	""	""	
30	""	""	""	
31	""	""	""	
32	""	""	""	
33	""	""	""	
34	""	""	""	
35	Source:	""	""	
36	Federal Register, Vol. 85, No. 84, April 30, 2020. (Additional resources: www.nhtsa.gov/fuel-economy)	""	""