Mont. Code Ann. § 35-2-454

35-2-454 . Application. (1) A provision treating a corporation's indemnification of or advance for expenses to directors that is contained in its articles of incorporation, its bylaws, a resolution of its members or board of directors, a contract, or other instrument is valid only if and to the extent the provision is consistent with 35-2-446 through 35-2-454 . If articles of incorporation limit indemnification or advance for expenses, indemnification and advance for expenses are valid only to the extent consistent with the articles.

(2) Sections 35-2-446 through 35-2-454 do not limit a corporation's power to pay or reimburse expenses incurred by a director in connection with appearing as a witness in a proceeding at a time when the director has not been made a named defendant or respondent to the proceeding.