Prefer primary sources
For government rates, policies, standards, and public data, we prefer the issuing agency or original dataset. Secondary material can help explain context, but it should not replace an authoritative source for a current decision.
Show dates and limitations
Time-sensitive information should identify its source-review date where practical. A date is not a guarantee that a rule remains unchanged. Always confirm the current source before acting.
Explain estimates
Planning tools may simplify complicated rules. Inputs, assumptions, and exclusions should be described so a result can be checked. An estimate is not an authorization, entitlement decision, legal opinion, medical advice, or guarantee of an outcome.
Request a correction
Email the page address, the exact statement or result at issue, and a link to the relevant primary source. We review the evidence and update affected copy or calculations when warranted.