Direct Testimony shall be offered in the following order:
The staff of the Commission and its representatives and consultants may offer testimony at any time.
At the conclusion of the testimony of each witness, the Commissioners, staff and consultants, Federal and State and other governmental representatives, the applicant or petitioner, and intervenors shall have the right of oral cross-examination. Cross-examination shall be conducted in the following order:
When circumstances warrant, the Presiding Officer may vary the order in which witnesses appear and the order or manner in which testimony is given or witnesses cross-examined.
01- 672 C.M.R. ch. 5, § 16