- The building permit, including approved drawing must be kept on the building site; - The building permit must be posted visibly on the building site; - Written notice must be given to the Inspection Department 48 hours before commencement of any critical phase of the construction, such as pouring of concrete.
http://www.smn-news.com/st-maarten-st-martin-news/29675-ministry-vromi-warns-strict-enforcement-of-building-ordinance.html