The Fede­ral Coun­cil wants to sub­ject Zer­tES to a total revi­si­on. BR Som­ma­ru­ga in the dis­cus­sion in the Coun­cil of Sta­tes on 29.2.2016:

I would like to take the liber­ty of say­ing a few intro­duc­to­ry words about this bill, the Fede­ral Law on Cer­ti­fi­ca­ti­on Ser­vices in the Field of Elec­tro­nic Signa­tures (Zer­tes). Becau­se it is a very tech­ni­cal sub­ject that is not easy to com­mu­ni­ca­te, I will try to make an ana­lo­gy with the paper world: If we assu­me that until now the­re were black ball­point pens for wri­ting and red ball­point pens for legal­ly valid sig­ning, then we are now intro­du­cing new blue ball­point pens that can be used for various pur­po­ses. With this law we regu­la­te under which con­di­ti­ons which ball­point pen colors can be used. Put sim­ply and trans­fer­red to the paper world, the Zer­tes regu­la­tes which ball­point pen colors are available and which con­di­ti­ons must be met in order to beco­me a sta­te-appro­ved, i.e. cer­ti­fi­ed, ball­point pen manu­fac­tu­rer. So much for try­ing to pre­sent this very tech­ni­cal mat­ter. One must be awa­re that this is a very important law, but one that is per­haps some­what dif­fi­cult to under­stand due to its tech­ni­cal nature.
The pre­sent total revi­si­on does not chan­ge anything with regard to the qua­li­fi­ed elec­tro­nic signa­tu­re, which is equi­va­lent to the hand­writ­ten signa­tu­re. The use of regu­la­ted elec­tro­nic cer­ti­fi­ca­tes for legal enti­ties and aut­ho­ri­ties is now cla­ri­fi­ed and sim­pli­fi­ed. Cer­ti­fi­ca­tes can be used to pro­vi­de pro­of of ori­gin as well as to ensu­re the inte­gri­ty of the mes­sa­ge in que­sti­on and to pro­vi­de secu­re authen­ti­ca­ti­on of per­sons or machi­nes. The Zer­tes also regu­la­tes the issu­an­ce of the­se cer­ti­fi­ca­tes and the requi­re­ments for the manu­fac­tu­r­ers of the certificates.
Not­hing is chan­ged in the exi­sting con­cepts and prin­ci­ples of the pre­vious regu­la­ti­on. In par­ti­cu­lar, the ran­ge of cer­ti­fi­ca­te pro­ducts is not exhaus­tively regu­la­ted. This means that the­re will con­ti­n­ue to be various cer­ti­fi­ca­te pro­ducts, and as many as the mar­ket requi­res. Only the tech­ni­cal requi­re­ments defi­ned in more detail by the Fede­ral Coun­cil must be met.
You have just heard from the Chair­man of your Com­mit­tee for Legal Affairs that the pre­sent total revi­si­on was uncon­tro­ver­si­al. I would the­r­e­fo­re like to ask you, also on behalf of the Fede­ral Coun­cil, to fol­low the pro­po­sal of your com­mit­tee, to accept the busi­ness and to adopt it. 

Both coun­cils have dealt with the busi­ness and appro­ved the revi­si­on (most recent­ly the SR on 29.2.2016).

Mes­sa­ge of Janu­ary 15, 2014:

Draft: