A party or support enforcement agency seeking to modify, or to modify and enforce, a foreign child-support order not under the Convention may register that order in this State under §§ 6-601 through 6-608 of this title if the order has not been registered. A petition for modification may be filed at the same time as a request for registration, or at another time. The petition must specify the grounds for modification.

80 Del. Laws, c. 60, § ?6;