Option 1 – Pre-Production and Validation: The MIPS eligible clinician must first register to submit data with the PHA or, where applicable, the clinical data registry (CDR) to which the information is being submitted. Registration must be completed within 60 days after the start of the performance period, while awaiting an invitation from the PHA or CDR to begin testing and validation. Upon completion of the initial registration, the MIPS eligible clinician must begin the process of testing and validation of the electronic submission of data. The MIPS eligible clinician must respond to requests from the PHA or, where applicable, the CDR within 30 days; failure to respond twice within a performance period would result in the MIPS eligible clinician not meeting the measure.