lex silencio positivo (LSP/l.s.p.)
In a few cases the lack of reply of the administration by a deadline leads to automatic approval of permits. For instance, the Netherlands’ have put rules in place for permits for physical aspects stating that “the deadline for the decision-making process under the standard procedure is 8 weeks, which may be extended once by further 6 weeks at most. Missed deadline will automatically result in issue of a permit (under the principle of lex silencio positivo)” 26 .
https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX%3A52022DC0639