Conn. Practice Book § 25-26

(a) Upon an application for a modification of an

award of alimony pendente lite, alimony or support

of minor children, filed by a person who is then

in arrears under the terms of such award, the

judicial authority shall, upon hearing, ascertain

whether such arrearage has accrued without

sufficient excuse so as to constitute a contempt

of court, and, in its discretion, may determine

whether any modification of current alimony and

support shall be ordered prior to the payment, in

whole or in part as the judicial authority may order,

of any arrearage found to exist.

(b) Either parent or both parents of minor chil -

dren may be cited or summoned by any party to

the action to appear and show cause, if any they

have, why orders of custody, visitation, support

or alimony should not be entered or modified.

(c) If any applicant is proceeding without the

assistance of counsel and citation of any other

party is necessary, the applicant shall sign the

application and present the application, proposed

order and summons to the clerk; the clerk shall

review the proposed order and summons and,

unless it is defective as to form, shall sign the

proposed order and summons and shall assign a

date for a hearing or other court event on the application.

(d) Each motion for modification of custody, visitation, alimony or child support shall state clearly

in the caption of the motion whether it is a pendente lite or a postjudgment motion.

(e) Each motion for modification shall state the

specific factual and legal basis for the claimed

modification and shall include the outstanding

order and date thereof to which the motion for

modification is addressed.

(f) On motions addressed to financial issues,

the provisions of Section 25-30 shall be followed.

(g) Upon or after entry of judgment of a dissolution of marriage, dissolution of civil union, legal

separation or annulment, or upon or after entry

of a judgment or final order of custody and/or

visitation for a petition or petitions filed pursuant

to Section 25-3 and/or Section 25-4, the judicial

authority may order that any further motion for

modification of a final custody or visitation order

shall be appended with a request for leave to file

such motion and shall conform to the requirements of subsection (e) of this section. The specific factual and legal basis for the claimed modification shall be sworn to by the moving party or

other person having personal knowledge of the

facts recited therein. If no objection to the request

has been filed by any party within ten days of the

date of service of such request on the other party,

the request for leave may be determined by the

judicial authority with or without hearing. If an objection is filed, the request shall be placed on the

next short calendar, unless the judicial authority

otherwise directs. At such hearing, the moving

party must demonstrate probable cause that

grounds exist for the motion to be granted. If the

judicial authority grants the request for leave, at

any time during the pendency of such a motion

to modify, the judicial authority may determine

whether discovery or a study or evaluation pursuant to Section 25-60 shall be permitted.