Sources policy

Safety guidance is only worth as much as what it is based on. These are the rules we hold ourselves to.

What we cite

In order of preference: regulators and government agencies; the regulations themselves; the manufacturer of the specific thing you own; recognised standards bodies; then established industry and academic sources. For automotive topics that usually means NHTSA, the Code of Federal Regulations, the U.S. Department of Energy, and your vehicle’s own documentation.

We never invent a URL

Every link on this site was opened and checked before it was published. When a source is real but has no single public address — your vehicle’s tire placard, for instance, which differs per car — it is listed without a link and marked as such. A plausible-looking URL that goes nowhere is worse than no URL at all.

We never invent a number

No fabricated safe distances, safe durations, or thresholds. If an authoritative source gives a figure, we use it and say where it came from. If none does, the page says there is no honest number and explains what to judge instead.

We never invent a reviewer

Pages show when they were last reviewed and what that review covered. They do not carry the name of a technician, doctor or engineer who did not review them. If that changes, the credential will be real and checkable.

Corrections

Content is reviewed on a schedule and re-checked whenever a cited source changes. Where a page has been corrected in a way that changes its verdict, the review date moves with it.