Some candidates may have taken earlier formats of the National Board examination sequence. Consequently, the following equivalency statements apply to any candidate wishing to complete the current three-part sequence of the National Board Examinations, but who began the sequence under an earlier format.

Please note that section scores from different administrations may not be combined to derive an overall Part I, II, or III score or determine a pass-fail status.

Part I equivalency:
Pass both Parts I and II examinations administered prior to 1976.
or
Pass both Parts I and IIA examinations administered from 1976 through 1986.
or
Pass the Basic Science examination administered from 1987 through 2008.
or
Pass the Applied Basic Science examination administered from 2009 to the present.

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Part II equivalency:
(including passing the TMOD component)

Pass the Part II examination administered prior to 1976, plus pass the TMOD examination administered since 1985.
or
Pass the Part IIB examination administered from 1976 through 1986, plus pass the TMOD examination administered since 1985.
or
Pass the Clinical Science examination administered from 1987 through 1992, plus pass the TMOD examination administered since 1985.
or
Pass the Clinical Science examination administered from 1993 through 2009, including the embedded TMOD examination.
or
Pass the Part II Patient Assessment and Management (PAM) examination administered from December 2009 to present, including the embedded TMOD examination.

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Part III equivalency:
Pass the Part III examination administered from 1993 through 1999.
or
Pass the overall Part III Patient Care examination comprised of the Clinical Skills Exam (CSE) and the Patient Assessment and Management (PAM) examination administered from 1999 through 2009.
or
Pass the Part III Clinical Skills examination administered from 2010 to present.