Whenever in the opinion of the Office the amount of security given
by the self-insurer is insufficient to afford adequate security for the
payment of benefits and medical expenses under the Act, the self-
insurer shall, upon demand by the Office, file such additional security
as the Office may require. The Office may reduce the amount of security
at any time on its own initiative, or upon the application of a self-
insurer, when it believes the facts warrant a reduction. A self-insurer
seeking a reduction shall furnish such information as the Office may
request relative to his current affairs, the nature and hazard of the
work of his employees, the amount of the payroll of his employees
engaged in coal mine employment within the purview of the Act, his
financial condition, and such other evidence as may be deemed material,
including a record of benefit payments he has made.
