Minor work as defined by N.J.A.C. 5:23-2.17A shall require a permit. However, work may proceed,upon notice to the enforcing agency, before the permit is issued; from N.J.A.C. 5:23-2.17A "The issuance of a permit shall not be required before minor work may proceed. The owner, or an architector contractor acting on behalf of the owner, shall, however, provide notice of the work to the enforcingagency before work begins." Minor work is defined in N.J.A.C. 5:23-2.17A so don't assume what your doing is minor work. Emergency work not involving lead abatement may also begin without a permit, except that notice shall be given as soon thereafter asis practicable, and a permit shall be applied for not later than 72 hours thereafter.