Nuclear Data Sheets for A = 254

The experimental results for the structure and decay studies for the A = 254 isobaric chain, Z = 93 to 108, have been reviewed. These data are summarized and presented together with the adopted levels, decay schemes and radiation properties. Theoretical studies are given as comments. The following nuclides for A = 254 have not been observed and only their theoretical or systematic studies have been reported: Z = 93 (Np) to Z = 97 (Bk); Z = 105 (Db) to Z = 108 (Hs). New measurements have been reported in 254No.