Section 14 of 105
13. Mandatory, Recommended, Optional and Experimental Provisions
Stable section ID: S05-CON-014-SECTION-14 · 13 content blocks
Every provision shall be assigned a clear obligation class.
Mandatory provisions define requirements that shall be satisfied for the applicable conformance claim. Failure constitutes nonconformity unless an authorized deviation exists.
Recommended provisions identify preferred practices expected to improve safety, quality, interoperability, maintainability, affordability, or lifecycle performance. Departure is permitted, but the decision and consequences may require documentation.
Optional provisions define permitted capabilities or implementation choices. Optional features shall not become undeclared dependencies for mandatory building functions.
Experimental provisions support controlled research, pilots, and emerging technology. They shall:
- Remain clearly identified.
- Define their authorization boundary.
- State known limitations and uncertainty.
- Establish additional monitoring where required.
- Define safe fallback or termination conditions.
- Avoid unsupported safety or certification claims.
- Not replace mandatory provisions without formal approval.
A profile may select optional or recommended provisions and make them mandatory within that profile. The resulting obligation shall be clearly attributed to the profile rather than misrepresented as universal constitutional law.