testing question

The sxm EHAS site states 2 different time fences for testing. In one place they say 72 hrs and in another they say 48 hours prior to departure. Which one is correct???

Current requirements:
Effective January 1, 2022, all countries will be classified as very high risk until further notice with Covid-19 test requirements based on the vaccination status:
fully vaccinated with booster shot received. Booster shot should be at least 2 wks. old and not exceed 9 months since administered: no covid-19 test required
fully vaccinated 18 yrs. and older without booster shot: 48 hrs. rt-PCR or 24 hr. Ag test required
fully vaccinated older than 5 and younger than 18 yrs. without booster shot: no covid-19 test required
non -vaccinated: 48 hrs. rt-PCR test required