Pertinent material includes more than evidence that establishes fact or supports statements.
It means material required or suggested by claims instruction, including any material
that conflicts or disagrees with the application or other evidence. It may also include
correspondence or copies of correspondence if relevant to a point in issue.
Whenever the evidence on any material issue leaves room for doubt or question, your
personal observations and opinions may be pertinent and should be included in the
file on an RC. If in doubt about any material, include it.