Dz.U. 1998 nr 137 poz. 887

Ustawa z dnia 13 października 1998 r. o systemie ubezpieczeń społecznych.

Changes from version 130 to version 131

Version 130
Dz.U. 2015 poz. 978, Jan. 1, 2016 Reconstructed
Version 131
Dz.U. 2015 poz. 1066, Jan. 1, 2016 Reconstructed

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Version 131 is computed, not official. sejmdiff made it by applying the instructions of the amending act to the previous version. Only the published acts are legally binding. Official text of the amending act

Amending acts in this period

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