Rule 81. Effective Date;  Applicability

(a) Effective Date These rules and any amendments take effect at the time specified by the Supreme Court.

(b) Applicability Upon the effective date, a rule or amendment governs:

(1) proceedings in an action commenced after its effective date; and

(2) proceedings after that date in a pending action unless:

(A) the Supreme Court specifies otherwise in its order adopting the rule or amendment; or

(B) the court determines that applying the rule or amendment in a particular action would be infeasible or work an injustice, in which event the former rule or procedure applies.