(a) The political subdivisions of the state and other agencies designated or appointed by the Governor are authorized and empowered to make, amend, and rescind such orders, rules, and regulations as may be necessary for emergency management purposes and to supplement the carrying out of Articles 1 through 3 of this chapter, but not inconsistent with any orders, rules, or regulations promulgated by the Governor or by any state agency exercising a power delegated to it by him.

(b) All orders, rules, and regulations promulgated by the Governor, or by any political subdivision or other agency authorized by Articles 1 through 3 of this chapter to make orders, rules, and regulations, shall have the full force and effect of law when, in the event of issuance by the Governor or any state agency, a copy thereof is filed in the office of the Secretary of State or, if promulgated by a political subdivision of the state or agency thereof, when filed in the office of the clerk of the political subdivision or agency promulgating the same. All laws, ordinances, rules, and regulations inconsistent with Articles 1 through 3 of this chapter, or of any order, rule, or regulation issued under the authority of Articles 1 through 3 of this chapter, shall be suspended during the period of time and to the extent that the conflict exists.

(c) In order to attain uniformity so far as practicable throughout the country in measures taken to aid emergency management, all action taken under Articles 1 through 3 of this chapter and all orders, rules, and regulations made pursuant thereto shall be taken or made with due consideration to the orders, rules, regulations, actions, recommendations, and requests of federal authorities relevant thereto and, to the extent permitted by law, shall be consistent with such orders, rules, regulations, actions, recommendations, and requests.