First season with a total of 20 teams compete in this division, after the reduction in the previous edition.

[1] This competition consists of a first stage with all the teams then proceed to a promotion or relegation series depending on their performance.

B-SAD sports society's licence was relocated to Cova da Piedade,[3] as a result of a fusion.

On 13 July 2023, the Portuguese Football Federation informed that Cova da Piedade failed to obtain a licence to play in Liga 3, being replaced by the best placed team in 2022–23 Campeonato de Portugal that wasn't promoted: Pêro Pinheiro.

The eight qualified teams of each series will playing against each other in a home-and-away double round-robin system.