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Eastern Pacific exits chemical tanker sector as fleet shifts to Ace and Womar Telegram Blocked in India for NEET Exam, But Remains Accessible via VPN FTAs, Agri-Start-ups and FPOs to Drive Next Phase of Farm Export Growth: APEDA Chief India's mango exports reach 45 countries; US shipments likely to grow over 30% this season: APEDA MSC denies report of Hapag-Lloyd acquisition talks; carrier says claim 'not true or correct' Tin Prices Poised to Rule Elevated in 2026 on Semiconductor Demand and Supply Disruptions India must boost oilseed yields to cut edible oil imports, SEA chief says India Air Freights 5 Tonnes of Medical Aid to Afghanistan Under Humanitarian Assistance Tsakos Joins Greek Capesize Ordering Wave at Hengli Heavy Industries How US quietly kept Gulf crude moving despite Iran's Hormuz blockade Eastern Pacific exits chemical tanker sector as fleet shifts to Ace and Womar Telegram Blocked in India for NEET Exam, But Remains Accessible via VPN FTAs, Agri-Start-ups and FPOs to Drive Next Phase of Farm Export Growth: APEDA Chief India's mango exports reach 45 countries; US shipments likely to grow over 30% this season: APEDA MSC denies report of Hapag-Lloyd acquisition talks; carrier says claim 'not true or correct' Tin Prices Poised to Rule Elevated in 2026 on Semiconductor Demand and Supply Disruptions India must boost oilseed yields to cut edible oil imports, SEA chief says India Air Freights 5 Tonnes of Medical Aid to Afghanistan Under Humanitarian Assistance Tsakos Joins Greek Capesize Ordering Wave at Hengli Heavy Industries How US quietly kept Gulf crude moving despite Iran's Hormuz blockade

Home ›› Intl Trade ›› Import Export ›› Understanding 49 CFR 390.21: Compliance for Vehicle Markings

Trade Import/Export

Understanding 49 CFR 390.21: Compliance for Vehicle Markings

Effective June 1, 2026, FMCSA reaffirmed the marking requirements under 49 CFR 390.21. This regulation mandates specific vehicle markings for motor carriers, affecting nearly all in the industry. Non-compliance can lead to scrutiny and penalties.

iG

iGEN Editorial

June 6, 2026

Understanding 49 CFR 390.21: Compliance for Vehicle Markings

Executive Summary

Mypy, Pyrefly, Pyright, ty, Zuban, and possibly more that will come in the future... how are library maintainers expected to cope? TL;DR: Prioritise running as many type-checkers as possible on your test suite. Run at least one on your source code. The type checking that matters most (and why you've probably got it backwards) If you only read one section of this blog post, please make it this one. Because this is where a lot of packages get it wrong. It's common to see packages run type checkers on their source code and to leave their tests untyped. That approach has it backwards. Suppose you

Source Coverage

Source	Headline	Published At
Hacker News – Front Page	Are you really expected to run five type-checkers now?	Pyrefly
FreightWaves	Black Marker, Magnetic Signs, and Peeling Decals: Here Is What 49 CFR 390.21 Actually Requires.	2026-06-05 00:00:00+00:00

Timeline

2026-06-03 00:00:00+00:00: Are you really expected to run five type-checkers now? | Pyrefly (via Hacker News – Front Page)
2026-06-05 00:00:00+00:00: Black Marker, Magnetic Signs, and Peeling Decals: Here Is What 49 CFR 390.21 Actually Requires. (via FreightWaves)

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