(a) An expedited process for modification of a child support order may be utilized if:
(1) Either parent experiences a substantial change of circumstances resulting in a decrease in income due to loss of employment or other involuntary cause;
(a) An expedited process for modification of a child support order may be utilized if:
(1) Either parent experiences a substantial change of circumstances resulting in a decrease in income due to loss of employment or other involuntary cause;