However, these laws are not comprehensive and limited in scope: the Antiquities Law only applies itself to buildings or artifacts dated before 1700 BC. So while efforts discovering and protecting anything older than 1700 BC are well protected, anything from later historical periods is not under the protection of this law. The Planning and Building Law discusses the overall management and regulation of land use in Israel. It has been through several changes and amendments specifically regarding preservation, but over the years it hasn't been enforced and many historical sites were destroyed, as the state was prioritizing developmental and economic interests.