Swiss law
What changes in Switzerland’s cantonal rules from September 1
New rules taking effect in September include changes to data-protection oversight in Bern and public-sector pay measures in Basel City. A practical guide should identify who is affected, what changes immediately and how the reforms fit into Switzerland’s cantonal legal system.

1 September 2026 brings immediate changes to local oversight, public-sector pay and federal prosecution. Switzerland's legal map is built in layers. The Confederation sets federal rules, while cantons regulate areas such as municipal administration, public employment and cantonal authorities. That division makes the September changes highly local in their direct effect, even as some measures reach businesses operating across borders.
In Bern, a revised cantonal Data Protection Act brings more than 1,000 municipalities and bodies governed by municipal law under the direct supervision of the cantonal data protection authority. Four large municipalities, Bern, Biel/Bienne, Köniz and Thun, keep their own data protection offices.
Basel City is putting most of a public-sector salary package into effect on the same date. It covers starting salaries, cantonal police pay measures and higher financial allowances. The package carries CHF 18 million in additional annual expenditure, plus CHF 4.3 million in one-off spending.
The Office of the Attorney General also begins operating under new organisational and administrative rules. A separate development arrives on 11 September, when the first mandatory duties under the EU Cyber Resilience Act affect covered digital products sold in the EU by Swiss businesses.
Bern centralises oversight for most municipalities
More than 1,000 Bernese bodies will report to one cantonal data protection authority from 1 September. The revised Bernese law changes who supervises data handling in municipalities and other bodies governed by municipal law. For residents, the practical issue is accountability: complaints and oversight involving covered bodies will be handled within the cantonal supervisory framework.
The reform does not erase every municipal arrangement. Bern, Biel/Bienne, Köniz and Thun, the canton’s four largest municipalities, retain their own data protection offices. That creates a two-track structure inside the same canton. Smaller municipalities and covered municipal-law bodies move under direct cantonal supervision, while the four largest cities continue with local offices.
The source does not specify changes to individual rights, complaint forms, deadlines or local data-handling systems. Residents and municipal staff should therefore consult the relevant authority before assuming that an existing contact point or procedure has changed. Municipal administrations should also confirm how the revised supervision affects internal records, procurement and responses to data-access requests.
The change illustrates how Swiss federalism works in practice. Data protection rules operate within federal and cantonal frameworks, while the organisation of oversight can vary from one canton, and even one municipality, to another.