1) Nearby targets: - d ≤ 40 Mpc (Vrec ≤ 3000 km/s) => +3 - d ≤ 25 MPc (Vrec ≤ 1800 km/s) => +6 2) Young targets (at classification): - tclass - (tdisc + tlim)/2 ≤ 4 => +5 - tclass - (tdisc + tlim)/2 ≤ 7 => +2 - tclass - (tdisc + tlim)/2 ≤ 10 => +1 3) Young targets (at discovery): - tdisc - tlim ≤ 2 => +3 - tdisc - tlim ≤ 5 => +1 4) "Hostless" - No apparent host galaxy in the discovery image (or fainter than M(B) > -18) => +3 5) Remote location on E/SO & halos of spirals: - r≥15kpc => +2 - r≥25kpc => +4 6) Multiple-SN hosts - Host galaxies with more than 3 SNe (including the new one) => +2 7) Star-forming environments - Arp systems, transients in tidal tails or in dust lanes => +1 8) Peculiar light curves - Slow light curve rise (≥ 30 days), or fast decline (≥ 1 mag/5days) => +2 9) Alerts - GRB and/or XRF alerts => +4 10) Absolute magnitude criteria: - super-luminous transients (M ≤ -20) => +4 - very luminous transients (-20 < M < -19.5) => +2 - very faint transients (-15.5 < M < -14.5) => +2 - ultra-faint transients (M ≥ -14.5) => +4 11) Pre-discovery variability history - past, pre-SN detections => +3 12) AGN candidate contamination - transient in the galaxy nucleus => -1 13) Short visibility window - object that cannot be follow for more than 3 weeks => -5
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