The Wolmer­ton North Gaut­eng Depot in Pre­to­ria has been oper­a­tional for some time. There are a num­ber of func­tions to sup­port new trains already in ser­vice in the province: there are cur­rent­ly two con­tracts with the Gibela Rail Trans­port Con­sor­tium (Gibela): “Man­u­fac­ture Sup­ply Agree­ment (MSA) — 600 new trains, with an order val­ue of R59 bil­lion over 15 years; and — agree­ment on tech­ni­cal assis­tance and sup­ply of spare parts (TSSSA) — agree­ment on the main­te­nance of new trains over a peri­od of 19 years. As an alter­na­tive to the main­te­nance of rolling stock by a main­te­nance ser­vice provider in accor­dance with a rail trans­port con­tract (TSA), an oper­a­tor may choose to main­tain the rolling stock him­self or to pro­cure the rolling stock that a third par­ty main­tains in accor­dance with an exist­ing main­te­nance con­tract. For more infor­ma­tion on ASD, please see the prac­ti­cal note: Rail­way Fund­ing — Rail Agree­ments. If the oper­a­tor choos­es to main­tain the rolling stock him­self, he may require some tech­ni­cal sup­port from the orig­i­nal man­u­fac­tur­er of the rolling stock or from anoth­er sup­pli­er. Under these con­di­tions, the oper­a­tor can enter into a Tech­ni­cal Assis­tance and Replace­ment Sup­ply Agree­ment (TSSSA). A Sec­tion 54 agree­ment also includes a tech­ni­cal assis­tance and replace­ment agree­ment for 377-series vehi­cles, which also expires on March 7, 2022. Since an oper­a­tor typ­i­cal­ly takes a TSSSA to sup­port the main­te­nance of rolling stock, it is cus­tom­ary for the oper­a­tor (and unlike a TSA, not the sup­pli­er) to main­tain the rolling stock in accor­dance with applic­a­ble laws and stan­dards, vehi­cle man­u­als and an agreed main­te­nance plan. In addi­tion to its con­tract with the Pas­sen­ger Rail Agency of South Africa (PRASA) for the sup­ply of 600 new com­muter trains over a 10-year ref­er­ence, Gibela has entered into a 19-year agree­ment with the Agency for Tech­ni­cal and Replace­ment Assis­tance (TSSSA). For the pur­pos­es of this agree­ment, Gibela will pro­vide, as the name sug­gests, a main­te­nance and tech­ni­cal assis­tance ser­vice as well as spare parts for the new trains. Approx­i­mate­ly 150 peo­ple are already employed full-time in the oper­a­tional com­po­nents of the TSSSA, more than half of whom are women. In this part of the com­pa­ny, as in gibela, this part of the com­pa­ny ensures the train­ing and devel­op­ment of employ­ees. TBTC Tech­ni­cal Sup­port and Spares Sup­ply Agree­ment between Thales Ground Trans­porta­tion Lim­it­ed and Tube Lines Lim­it­ed from Feb­ru­ary 18, 2017 4.