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Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 51, Subpt. S, App. E Appendix E to Subpart S OF PART 51—Transient Test Driving Cycle
Current as of January 02, 2025 | Updated by Findlaw Staff
(I) Driver's trace. All excursions in the transient driving cycle shall be evaluated by the procedures defined in § 86.115–78(b)(1) and § 86.115(c) of this chapter. Excursions exceeding these limits shall cause a test to be void. In addition, provisions shall be available to utilize cycle validation criteria, as described in § 86.1341–90 of this chapter, for trace speed versus actual speed as a means to determine a valid test.
(II) Driving cycle. The following table shows the time speed relationship for the transient IM240 test procedure.
|
Second |
MPH |
|---|---|
|
0 |
0 |
|
1 |
0 |
|
2 |
0 |
|
3 |
0 |
|
4 |
0 |
|
5 |
3 |
|
6 |
5.9 |
|
7 |
8.6 |
|
8 |
11.5 |
|
9 |
14.3 |
|
10 |
16.9 |
|
11 |
17.3 |
|
12 |
18.1 |
|
13 |
20.7 |
|
14 |
21.7 |
|
15 |
22.4 |
|
16 |
22.5 |
|
17 |
22.1 |
|
18 |
21.5 |
|
19 |
20.9 |
|
20 |
20.4 |
|
21 |
19.8 |
|
22 |
17 |
|
23 |
14.9 |
|
24 |
14.9 |
|
25 |
15.2 |
|
26 |
15.5 |
|
27 |
16 |
|
28 |
17.1 |
|
29 |
19.1 |
|
30 |
21.1 |
|
31 |
22.7 |
|
32 |
22.9 |
|
33 |
22.7 |
|
34 |
22.6 |
|
35 |
21.3 |
|
36 |
19 |
|
37 |
17.1 |
|
38 |
15.8 |
|
39 |
15.8 |
|
40 |
17.7 |
|
41 |
19.8 |
|
42 |
21.6 |
|
43 |
23.2 |
|
44 |
24.2 |
|
45 |
24.6 |
|
46 |
24.9 |
|
47 |
25 |
|
48 |
25.7 |
|
49 |
26.1 |
|
50 |
26.7 |
|
51 |
27.5 |
|
52 |
28.6 |
|
53 |
29.3 |
|
54 |
29.8 |
|
55 |
30.1 |
|
56 |
30.4 |
|
57 |
30.7 |
|
58 |
30.7 |
|
59 |
30.5 |
|
60 |
30.4 |
|
61 |
30.3 |
|
62 |
30.4 |
|
63 |
30.8 |
|
64 |
30.4 |
|
65 |
29.9 |
|
66 |
29.5 |
|
67 |
29.8 |
|
68 |
30.3 |
|
69 |
30.7 |
|
70 |
30.9 |
|
71 |
31 |
|
72 |
30.9 |
|
73 |
30.4 |
|
74 |
29.8 |
|
75 |
29.9 |
|
76 |
30.2 |
|
77 |
30.7 |
|
78 |
31.2 |
|
79 |
31.8 |
|
80 |
32.2 |
|
81 |
32.4 |
|
82 |
32.2 |
|
83 |
31.7 |
|
84 |
28.6 |
|
85 |
25.1 |
|
86 |
21.6 |
|
87 |
18.1 |
|
88 |
14.6 |
|
89 |
11.1 |
|
90 |
7.6 |
|
91 |
4.1 |
|
92 |
0.6 |
|
93 |
0 |
|
94 |
0 |
|
95 |
0 |
|
96 |
0 |
|
97 |
0 |
|
98 |
3.3 |
|
99 |
6.6 |
|
100 |
9.9 |
|
101 |
13.2 |
|
102 |
16.5 |
|
103 |
19.8 |
|
104 |
22.2 |
|
105 |
24.3 |
|
106 |
25.8 |
|
107 |
26.4 |
|
108 |
25.7 |
|
109 |
25.1 |
|
110 |
24.7 |
|
111 |
25.2 |
|
112 |
25.4 |
|
113 |
27.2 |
|
114 |
26.5 |
|
115 |
24 |
|
116 |
22.7 |
|
117 |
19.4 |
|
118 |
17.7 |
|
119 |
17.2 |
|
120 |
18.1 |
|
121 |
18.6 |
|
122 |
20 |
|
123 |
20.7 |
|
124 |
21.7 |
|
125 |
22.4 |
|
126 |
22.5 |
|
127 |
22.1 |
|
128 |
21.5 |
|
129 |
20.9 |
|
130 |
20.4 |
|
131 |
19.8 |
|
132 |
17 |
|
133 |
17.1 |
|
134 |
15.8 |
|
135 |
15.8 |
|
136 |
17.7 |
|
137 |
19.8 |
|
138 |
21.6 |
|
139 |
22.2 |
|
140 |
24.5 |
|
141 |
24.7 |
|
142 |
24.8 |
|
143 |
24.7 |
|
144 |
24.6 |
|
145 |
24.6 |
|
146 |
25.1 |
|
147 |
25.6 |
|
148 |
25.7 |
|
149 |
25.4 |
|
150 |
24.9 |
|
151 |
25 |
|
152 |
25.4 |
|
153 |
26 |
|
154 |
26 |
|
155 |
25.7 |
|
156 |
26.1 |
|
157 |
26.7 |
|
158 |
27.3 |
|
159 |
30.5 |
|
160 |
33.5 |
|
161 |
36.2 |
|
162 |
37.3 |
|
163 |
39.3 |
|
164 |
40.5 |
|
165 |
42.1 |
|
166 |
43.5 |
|
167 |
45.1 |
|
168 |
46 |
|
169 |
46.8 |
|
170 |
47.5 |
|
171 |
47.5 |
|
172 |
47.3 |
|
173 |
47.2 |
|
174 |
47.2 |
|
175 |
47.4 |
|
176 |
47.9 |
|
177 |
48.5 |
|
178 |
49.1 |
|
179 |
49.5 |
|
180 |
50 |
|
181 |
50.6 |
|
182 |
51 |
|
183 |
51.5 |
|
184 |
52.2 |
|
185 |
53.2 |
|
186 |
54.1 |
|
187 |
54.6 |
|
188 |
54.9 |
|
189 |
55 |
|
190 |
54.9 |
|
191 |
54.6 |
|
192 |
54.6 |
|
193 |
54.8 |
|
194 |
55.1 |
|
195 |
55.5 |
|
196 |
55.7 |
|
197 |
56.1 |
|
198 |
56.3 |
|
199 |
56.6 |
|
200 |
56.7 |
|
201 |
56.7 |
|
202 |
56.3 |
|
203 |
56 |
|
204 |
55 |
|
205 |
53.4 |
|
206 |
51.6 |
|
207 |
51.8 |
|
208 |
52.1 |
|
209 |
52.5 |
|
210 |
53 |
|
211 |
53.5 |
|
212 |
54 |
|
213 |
54.9 |
|
214 |
55.4 |
|
215 |
55.6 |
|
216 |
56 |
|
217 |
56 |
|
218 |
55.8 |
|
219 |
55.2 |
|
220 |
54.5 |
|
221 |
53.6 |
|
222 |
52.5 |
|
223 |
51.5 |
|
224 |
50.5 |
|
225 |
48 |
|
226 |
44.5 |
|
227 |
41 |
|
228 |
37.5 |
|
229 |
34 |
|
230 |
30.5 |
|
231 |
27 |
|
232 |
23.5 |
|
233 |
20 |
|
234 |
16.5 |
|
235 |
13 |
|
236 |
9.5 |
|
237 |
6 |
|
238 |
2.5 |
|
239 |
0 |
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 51, Subpt. S, App. E Appendix E to Subpart S OF PART 51—Transient Test Driving Cycle - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-pt-40-51-subpt-s-app-e/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.
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