If the individual's impairment severity resulted in a medical-vocational allowance
                        at the CPD, we evaluate whether MI is related to the ability to work through the residual
                        functional capacity comparison mechanism; see DI 28015.300 through DI 28015.855. The MC/PC will complete a PRT (and residual functional capacity (RFC) assessment,
                        if appropriate). If there is a current RFC assessment, compare the MIRS RFC with the
                        CPD RFC to determine whether MI is related to the ability to work. If the MIRS RFC
                        has not increased from the CPD RFC, find MI not related to the ability to work, and
                        continue benefits if no exception applies. If the MIRS RFC increased from the CPD
                        RFC, find that MI is related to the ability to work and consider the remaining steps
                        in CDR sequential evaluation process.
                     
                     As noted in DI 28010.140C.2. in this section, a PRT(s) may be completed before this step is reached. If the CPD
                        used a RFC assessment form different from the form used currently, the MC/PC may use
                        current and prior PRTs (especially Section IV, Consultant’s notes) as an aid in judging
                        whether MRFC increased.