210 Pa. Code § 69.101
For the purpose of these Internal Operating Procedures, the following terms shall have the meanings indicated:
"Assigned Judge" means a judge of the Commonwealth who has been assigned to serve this Court.
"Commissioned Judge" means a judge serving as a member of this Court by gubernatorial appointment or, pursuant to election, during an elective term as a member of this Court.
"Duty Judge" means the Judge currently designated for service by the duty roster established under § 69.121.
"Judge" shall include (1) each Commissioned Judge (2) each Senior Judge and Assigned Judge with respect to matters on which the Senior Judge or Assigned Judge has been designated to sit, and (3) each Assigned Judge with respect to designation as a Duty Judge.
"Mediation Judge" means a Judge of the Court, assigned on a periodic basis by the President Judge to conduct mediations under § 69.501 (Mediation).
"Senior Judge" means a Judge, formerly elected as a member of this Court or another court of the Commonwealth, who has retired and is designated to sit as a Senior Judge on panels of this Court, whether or not also designated to serve as a Duty Judge.
210 Pa. Code § 69.101