Practice limits and how to adjust your speed, with questions based on the Mississippi Driver's License Manual.
55 mph
Adjust your speed for curves, traffic and weather.
Source: MDPS Driver's License Manual, Legal Speeds, PDF p. 41; Appendix B, PDF p. 90
45 mph
On the interstate a school bus may go up to 65 mph.
70 mph
State law lets the Transportation Commission raise interstate limits only up to 70 mph.
Source: MDPS Driver's License Manual, Legal Speeds, PDF p. 41; Appendix B, PDF p. 90; Miss. Code 63-3-501, Miss. Code 63-3-501 (current text as reproduced in 2025 HB 74 (passed House, died in Senate))
50 mph
Lower speeds are posted in some places, and radar is used on the Parkway.
Source: MDPS Driver's License Manual, Legal Speeds, PDF p. 41; Appendix B, PDF p. 90
Driving off a four-story building
Speed makes crashes, especially fatal ones, more likely.
40 mph
Four-lane state and US highways usually have the same 40 mph minimum.
Source: MDPS Driver's License Manual, Legal Speeds, PDF p. 41; Appendix B, PDF p. 90
No, it is the same day and night
All speed limits assume ideal road and weather conditions.
Source: MDPS Driver's License Manual, Speed Limits & Following Distance, PDF p. 70
65 mph
The Transportation Commission may raise limits on interstates and four-lane controlled-access highways to no more than 70 mph.
15 mph
The limit applies when passing a school at recess or as children arrive or leave.
Source: MDPS Driver's License Manual, PDF p. 41; School Zone sign, PDF p. 31
65 mph
Always watch for posted limits, which may be different.
Source: MDPS Driver's License Manual, Legal Speeds, PDF p. 41; Appendix B, PDF p. 90
We wrote these practice questions from the facts in the Mississippi Driver's License Manual ('Revised December 2024' (PDF p. 2), file '1.15.2025 Revised MDPS Driver's Manual.pdf' on driverservicebureau.dps.ms.gov (posted as the new manual on 2025-03-10), 92 PDF pages, read 2026-11-10. Page numbers cited are PDF pages, which equal the printed page numbers. Where the manual is silent or out of date, the Driver Service Bureau pages (Regular Learner's Permit, Regular Driver License, Hardship License, Knowledge Testing Policy, the August 2025 DUI FAQ and the 2026-06-25 Driver's Education Update), Miss. Admin. Code Title 31, Part 1, and the Mississippi Code are the source. The official Mississippi Code is published only by LexisNexis (linked from sos.ms.gov, not a .gov host), so statute text was read from bills on billstatus.ls.state.ms.us that reproduce the current section before amendment: 63-3-809 (2026 HB 287), 63-3-615 (2025 HB 7), 63-3-501 (2025 HB 74), 63-33-1 (2026 HB 291) and 63-11-30 (2024 SB 2606); none of those bills was enacted, and the 2025 and 2026 session lists of enacted bills show no other change to these traffic rules (SB 2314 and SB 2322 of 2026 change license administration only). Differences found and how they were handled: (1) the manual's emergency vehicle section (p. 67) covers only emergency vehicles, while 63-3-809(3) and (5) also require moving over or slowing for stopped recovery, utility service, sanitation and highway maintenance vehicles and rural mail carriers, with fines up to $250 or $1,000 (63-3-809(6)); questions follow the statute; (2) the manual gives no penalty for texting; 63-33-1(3) makes it a civil violation with a $100 fine, used in one question; (3) the speed table (p. 41) gives limits that 'usually apply' (interstates 70, four-lane highways 65, two-lane highways 55), while 63-3-501 sets 65 as the general maximum and lets the Transportation Commission raise interstates and four-lane controlled-access highways to no more than 70; questions use 'usually' for the table and the statute for the general maximum; (4) the railroad stop rule is printed as 'within fifty to ten feet' (pp. 35-36) and is read as between 10 and 50 feet from the outer rail; (5) the manual (p. 11) requires the exam when an out-of-state license is expired over thirty days, while the Regular Driver License page says any expired out-of-state license; the question uses 'more than 30 days', true under both; (6) Admin. Code Title 31, Part 1 (filed 2014) is partly out of date (one-year permit, $3 fee, road test rules) against the current DSB pages; only its 80% pass rule is used. The school zone limit of 15 mph (pp. 31, 41) could not be checked against statute text on an official host and comes from the manual only. edition) and from official sources on road signs. Every answer links to its source, so you can check it and read more.
DMV Decoded is an independent guide, not a government agency. This practice test is not connected to the Mississippi Department of Public Safety, Driver Service Bureau, and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.