Okla. Stat. tit. 70, § 70-5-148: Security drills

Each district board of education shall ensure that a minimum of

four security drills are conducted at each public school within the

district each school year. No security drill shall be conducted at

the same time of day as a previous security drill conducted in the

same school year, and no more than two security drills shall be

conducted in one semester. One security drill shall be conducted

within the first fifteen (15) days of each semester. Additional

drills may be conducted at the discretion of the district. Security

drills shall be conducted for the purpose of securing school

buildings to prevent or mitigate injuries or deaths that may result

from a threat around or in the school. The drills shall conform to

the written plans and procedures adopted by the district as required

by Section 681 of Title 63 of the Oklahoma Statutes. All students

and employees shall participate in the drills, with the extent of

student involvement to be determined by the district.

The State Board of Education shall adopt rules to implement the

provisions of this section.