Upon completion of a weather modification project or activity the person who performed the same shall submit a report to the Administrator not later than 45 days after completion of the project or activity. The report shall include the file number assigned by the Administrator and the following items:

(a) Information required for the interim reports (to the extent not previously reported).

(b) The total number of days on which actual modification activities took place during the project or activity.

(c) The total number of days during the project or activity on which weather modification activities were conducted, segregated by each of the major purposes of the activities.

(d) The total number of hours of operation of each type of weather modification apparatus during the project or activity (i.e., net hours of agent release).

(e) The total amount of modification agent(s) dispensed during the project or activity. If more than one agent was used, each should be totaled separately (e.g., carbon dioxide, sodium chloride, urea, silver iodide).

(f) The date on which the final weather modification activity occurred.

[41 FR 23394, June 10, 1976, as amended at 46 FR 32233, June 22, 1981]