It is hereby further certified by the Municipal Council of the City of Clifton that for the purpose of issuing building permits in accordance with and pursuant to N.J.S.A. 40:55-1.39, all streets which hereafter come into existence in the City of Clifton are deemed to be suitably improved to the satisfaction of the governing body as adequate in respect to public health, safety, and general welfare if such street is either improved by the City of Clifton or is improved or constructed by any person, firm or corporation in accordance with specifications prepared by and on file with the City Engineer and which specifications have been approved by the Municipal Council.