Both new and pre-existing installations of compressed gases are subject to?

The correct answer reflects the important regulatory framework established by the fire code, which sets forth specific operational and maintenance requirements for both new and existing installations of compressed gases. These regulations are critical to ensuring safety and compliance in environments where non-flammable medical gases are utilized.

The operational and maintenance requirements specified in the 2008 fire code help to ensure that installations are safely maintained, regularly inspected, and operated within prescribed safety standards. This is particularly pertinent in a medical context where the integrity and reliability of gas systems can directly impact patient care and safety.

In contrast, the other options fail to capture the comprehensive nature of the requirements for such installations. Annual inspections alone do not encompass the broader operational standards necessary for safe management; while operating permits might be relevant, they do not specifically address ongoing maintenance practices mandated by the fire code. Lastly, non-compliance exemptions would suggest a lack of regulatory oversight, which is contrary to the purpose of ensuring that safety standards are upheld within medical facilities.