A person, firm or corporation operating a railroad on or through forest, brush, grass-covered land or areas of high-value property shall maintain its right-of-way according to the minimum standards established in this section by destroying, removing, or modifying so as not to be flammable any vegetation or other flammable material as defined in this section. The director or an authorized agent is the final authority as to whether material is considered a flammable material and whether a condition is considered a fire hazard. [1993, c. 271, §2 (NEW); 1993, c. 271, §4 (AFF).]