A DOT date code ending in 06 was manufactured in 2006. The first two digits are the week. 2606 means week 26 of 2006. A mid-year tire from 2006 is replace advised: Past most manufacturer limits regardless of tread
Week 1 of 2006
Made in week 1 of 2006
Jan 2 to Jan 8, 2006 (approx.)
20 years 9 months · Replace advised
Past most manufacturer limits regardless of tread
Open 0106 in the decoderWeek 26 of 2006
Made in week 26 of 2006
Jun 26 to Jul 2, 2006 (approx.)
20 years 3 months · Replace advised
Past most manufacturer limits regardless of tread
Open 2606 in the decoderGeneral guidance, not a safety inspection. Follow the tire and vehicle maker's recommendation.
Made in week 26 of 2006
Jun 26 to Jul 2, 2006 (approx.)
20 years 3 months
Past most manufacturer limits regardless of tread
General guidance, not a safety inspection. Follow the tire and vehicle maker's recommendation.
Segments
Week ranges use ISO weeks, Monday through Sunday, and are approximate. Tire makers count weeks on their own calendars. The regulation describes a Sunday-to-Saturday week. Plant names come from the free NHTSA vPIC list. 49 CFR 574.5
Plant data from NHTSA, updated October 13, 2026.
A tire from week 26 of 2006 is 20 years 3 months old as of 2026-10-22. A tire from week 1 is 20 years 9 months. The exact age depends on the week in the DOT code.
A mid-year 2006 tire is in the “Replace advised” range: Past most manufacturer limits regardless of tread. General guidance, not a safety inspection. Follow the tire and vehicle maker's recommendation.
The last two digits are the year. A code ending in 06, such as 2606, was made in week 26 of 2006. The first two digits are the week, from 01 to 53.
Tire size calculator · Junkyard directory · Find used tires near you