SAFETY-52's hold applied per unit at N>1 (owner, 2026-09-27, option R). A unit that gives < 100 W for 12 cycles in one direction while asked > 200 W, or trips its stale-reading gate on a ~0 W reading, gets a P_SAFETY `refused` unit limit closing that direction, so the allocator hands its share to the others within their own limits. Probe: a +-200 W pin every 15 min, one unit at a time, only while the site asks 200 W that way. All units refusing: the site law holds 0 W. Exits reseed the site target from the wire. INFO plus one WARNING (REFUSES_ABOVE_CUT_OUT) above the configured cut-out; SAFETY-42/43 no longer report a refusing unit. N=1 unchanged. test_refusal_units.py: cases a/b/c on flat and jitter registers against the old behaviour, probes, recovery, exits; mutations U1-U13 all red. TEST-19 no-fault campaign: 0 engagements in 5280 runs. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>