The City reserves the right to amend this chapter and the terms and conditions hereof, in order to assure compliance by the City with all applicable Local, State and Federal laws and regulations. All national categorical pretreatment standards adopted after the promulgation of this chapter shall be adopted by the City as part of this chapter. The discharger shall be informed of any proposed changes in this chapter at least thirty days prior to the effective date of the change. Any changes or new conditions in the chapter shall include a reasonable time schedule for compliance.