After any area has been established pursuant to § 4-5-20 and § 4-5-21, no cattle shall be brought or transported into that area, except in accordance with the provisions of § 4-5-7 — § 4-5-10, and except that cattle transported through the area on the highways by truck or railroad, and no cattle shall be taken from that area except with the consent of the director of environmental management during the process of accreditation. Within six (6) months after the date of the establishment of this area, the director shall to the extent that funds are available for that purpose cause all remaining untested bovine cattle in this area to be tested as provided in § 4-5-1 — § 4-5-6 in accordance with the uniform rules and regulations promulgated by the United States livestock sanitary association and approved by the United States department of agriculture. After the area has been designated a modified accredited area, the cattle in this area shall be tested as provided in § 4-5-1 — § 4-5-6 at such intervals as may be deemed advisable by the director of environmental management.