Act 36, which began as Senate Bill 107 and Assembly Bill 101, requires parties ordered to participate in mediation to submit their proposed parenting plan to the assigned mediator at least 10 days prior to the mediation session (but not with the court). This submission may be emailed to the Mediator. Sharing with the other party is optional. The bill does not modify the requirement that parties must submit a plan to the court if mediation fails or is waived.
You can access the complete Act 36 here.