Usage of To Infinitive

State officials and snowmobile advocates are planning to sue over a court's decision to cut the number of snowmobiles allowed in national parks.

Of course, we know the abovemetioned sentence has only one way to be interpreted in terms of meaning. However, in terms of grammar, I guess it can be understood in 2 ways.

1. State officials and snowmobile advocates are planning to sue over a court's decision which cuts the numver of nowmobiles allowed in national parks.

2. State officials and snowmobile advocates are planning to sue over a court's decision so that they(State officials and snowmobile) can cut the numver of nowmobiles allowed in national parks.

Could you tell me whether my conjecture is right? Sentence 2 is interpreted in the same way with the sentence, "He studied hard to pass the exam."

Thanks.