How we research

Source hierarchy

For legal and administrative claims, we start with legislation, responsible authorities, federal or municipal service portals, and regulated bodies. For transport and products, we use the operator's current terms. For data, we prefer official statistics and clearly dated datasets.

• Legislation and responsible public authorities
• Municipal service portals
• Regulators and statutory institutions
• Transport and service operators
• Universities and recognised public bodies
• High-quality secondary explanations when primary material needs context

What we verify

We check that the source owns the process, the page is current enough for the claim, and local variation is stated. We do not convert one person's experience into a universal rule.

What readers should verify

Appointments, prices, thresholds, eligibility, document lists, timetables, and contract terms can change. We link to the live source so readers can confirm before acting.