The ITU Work­ing Par­ty 5A (WP 5A) is a work­ing par­ty under ITU‑R Study Group (SG) 5.  WP5A is respon­si­ble for stud­ies relat­ed to the land mobile ser­vice above 30 MHz, exclud­ing IMT and includ­ing wire­less access in the fixed ser­vice, as well as for stud­ies relat­ed to the ama­teur and ama­teur-satel­lite ser­vices. The work of WP 5A is done in a num­ber of Work­ing Groups that have respon­si­bil­i­ty for broad sub­ject areas and WG 5A‑1 is pri­mar­i­ly respon­si­ble for issues relat­ed to the ama­teur and ama­teur satel­lite services.

WP5A meets for two weeks in Gene­va twice every year.

An overview of the ITU Radio Reg­u­la­tions (RR), Rec­om­men­da­tions, Reports and Hand­books rel­e­vant to the ama­teur and ama­teur-satel­lite ser­vices, can be found in the fol­low­ing doc­u­ment: Guide to the use of ITU‑R texts relat­ing to ama­teur and ama­teur-satel­lite services.