Notes. The sample includes 80 reddening curves for 53 sightlines. Six curves show a peculiar jump in 0.28µm and the U band and are maked by ^(E). Column SpL refers to SpT and LC estimates of Sect. 4. Reddening curves by G09 (Gordon et al. 2009), FM07 (Fitzpatrick & Massa 2007), and V04 (Valencic et al. 2004) that pass the six confidence criteria of Sect. 5 are given in columns E^Ref as our first choice and Eⁱ when available. ^(†)Classification as single-cloud (S) or multiple-clouds (M) sightlines is taken from Siebenmorgen et al. (2020).