Due dates are specified in the milestone schedule of the fully-executed contract, as well as the reporting section. As stipulated in the contract, PCORI reserves the right to change the frequency in which it asks for reports from the prime recipient.
Reports require authorization and signatures from both the Principal Investigator (PI) and an authorized signing official. All reports should be submitted to PCORI using the PCORI Online system accessed through: https://pcori.force.com/engagement