Abstract
The article discusses intertemporal issues arising from the fact that the legislator introduced normative changes within Chapter IX of the Criminal Code, which specifies the grounds and principles for imposing aggregate penalty. From this perspective, the author analyses the key transitional provisions contained in the Act of 20 February 2015 amending the Criminal Code and certain other acts and the Act of 19 June 2020 on subsidies to interest rates for bank loans granted to entrepreneurs affected by the effects of COVID-19 and on the simplified procedure for the approval of arrangement in connection with the occurrence of COVID-19, as well as discusses legal consequences of the way in which given provisions have been formulated.