In Poland, participants in the Employee Capital Plans (PPK) who have opted out can return to contributing to their savings. The process for rejoining involves submitting a formal written request to their employer, which entitles them to resume their contributions starting from the next paycheck after the request is approved. Employers are responsible for calculating and deducting the appropriate amounts from the employee's earnings and must transfer these funds to a financial institution within a specific timeframe. This mechanism supports employees in enhancing their retirement savings by allowing them to re-engage with the PPK program at their discretion.