1. Act of 26 June 1974 – Labour Code (Journal of Laws of 2023, item 1465).
2. Act of 18 July 2002 on the Provision of Services by Electronic Means (Journal of Laws of 2020, item 344).
3. Act of 24 August 2007 on Amending the Labour Code and Certain Other Acts (Journal of Laws No. 181, item 1288).
4. Act of 2 March 2020 on Special Solutions Related to the Prevention, Counteraction and Suppression of COVID-19, Other Infectious Diseases and Emergencies Caused by Them (Journal of Laws of 2023, item 1327).
5. Act of 28 October 2020 on Amending Certain Laws in Connection with Countering COVID-19 Emergencies (Journal of Laws of 202, item 2113).