Catholic is Catholic, you're fine. Generally speaking, ALL Catholics may receive the sacraments of reconciliation and the Eucharist in any sui iuris of the Church. There are even provisions for Orthodox to receive them (though, whether or not they do, depends on their bishop). Now, if your son has not received Chrismation, there are ways to do that, given that's it's not practical to drive four hours away for it. But, you need to inform the eparchy and the pastor of your circumstances, if that is the case. (I know some Latins that have gone to a Melkite church their whole life, but, are canonically Latin, and have always gone to a Melkite church, I also know a Maronite, who was baptized Maronite, and has always gone to a Latin church).
