Scholarships for disability: reapplying

My DS received a generous 1 time scholarship from a pharm company that offers these awards to college students with his (low-incidence) condition. The scholarship is awarded to a number of students each year. I am wondering if there is any etiquette about reapplying for it next year (or another future year). The rules of the scholarship do not mention anything about reapplications. Would it seem greedy for him to ask for it again? Also, strategically, should he perhaps wait a year (or a few years, until grad school) before reapplying?

If the awarding company allows current recipients to apply again…go for it.