MA H1105

Exempts 19 categories of "specialty commercial lines" insurance from state rate and policy form filing requirements, including aircraft liability, cybersecurity, directors' and officers' liability, environmental liability, and commercial flood insurance

Requires insurers writing specialty commercial lines policies to maintain underwriting files, premium/loss statistics, and financial records subject to commissioner examination

Allows the Insurance Commissioner to temporarily reinstate filing requirements for up to one year for any specialty line if a hearing determines reasonable competition does not exist in that market

Grants the Commissioner authority to add additional commercial lines coverages to the exempt list by regulation, excluding motor vehicle, workers' compensation, and medical malpractice insurance

Amends the definition of "large commercial policyholder" to require $25,000 in aggregate property/casualty premiums plus meeting two criteria such as $10 million net worth, $5 million revenue, or more than 25 employees