EAM.8:11 - SoTA-Echoing

NIST HB135e2025, chapter 4, develops the timing of initial, recurring, replacement and residual consequences on a common study period. That discipline supports the dated account here; its federal rates and programme rules are not adopted. A payback-only screen loses later support and the ending premise.

FIN.6 supplies the incremental financial construction, and FIN.7 supplies a valuation consistent with continued use or actual disposal. Use their developed treatment when financial construction or appraisal is needed; retain a sufficient qualified local answer when it already supplies the result. EAM connects those returns to the technically supported asset policy. The numerical cases demonstrate this conditional connection and do not estimate financial or engineering performance in practice.