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Ten referendums were held in Switzerland  in 1990.[ 1] popular initiatives , a federal resolution on viticulture  and an amendment to the federal law on the organisation of the federal judiciary. The four popular initiatives  were all related to roadbuilding; "Stop the concrete – for a limitation on road making," "for an autobahn -free countryside between Murten  and Yverdon ," "for an autobahn-free Knonauer Amt ," and "for a free Aarelandschaft  between Biel  and Solothurn /Zuchwil ." All six were rejected by voters.[ 1] 
The last four were held on 23 September on two popular initiatives  to phase out nuclear power  and to stop the construction of any new nuclear power plants, as well as on a federal resolution on the energy article in the Swiss Federal Constitution  and an amendment to the federal law on road traffic. Whilst the nuclear power phase-out was rejected, the other three proposals were approved.[ 2] 
April: Popular initiative to limit roadbuilding [ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
500,615 
28.5 
0 
0 
0
  
Against 
1,255,197 
71.5 
20 
6 
23
  
Blank votes 
21,580 
– 
– 
– 
–
  
Invalid votes 
2,107 
– 
– 
– 
–
  
Total 1,779,499 100 20 6 23 
 
Registered voters/turnout 
4,327,120 
41.1 
– 
– 
–
  
Source: Nohlen & Stöver
  
April: Popular initiative for an autobahn-free countryside between Murten and Yverdon [ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
571,648 
32.7 
0 
0 
0
  
Against 
1,175,356 
67.3 
20 
6 
23
  
Blank votes 
28,920 
– 
– 
– 
–
  
Invalid votes 
2,248 
– 
– 
– 
–
  
Total 1,778,172 100 20 6 23 
 
Registered voters/turnout 
4,327,120 
41.1 
– 
– 
–
  
Source: Nohlen & Stöver
  
April: Popular initiative for an autobahn-free Knonauer Amt [ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
547,359 
31.1 
0 
0 
0
  
Against 
1,197,701 
68.6 
20 
6 
23
  
Blank votes 
32,026 
– 
– 
– 
–
  
Invalid votes 
2,611 
– 
– 
– 
–
  
Total 1,779,697 100 20 6 23 
 
Registered voters/turnout 
4,327,120 
41.1 
– 
– 
–
  
Source: Nohlen & Stöver
  
[ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
592,237 
34.0 
0 
0 
0
  
Against 
1,147,459 
66.0 
20 
6 
23
  
Blank votes 
34,604 
– 
– 
– 
–
  
Invalid votes 
2,333 
– 
– 
– 
–
  
Total 1,776,633 100 20 6 23 
 
Registered voters/turnout 
4,327,120 
41.1 
– 
– 
–
  
Source: Nohlen & Stöver
  
April: Federal resolution on viticulture [ edit ] 
Choice
 
Votes
 
%
  
For 
771,207 
46.7
  
Against 
881,609 
53.3
  
Blank votes 
109,745 
–
  
Invalid votes 
3,679 
–
  
Total 1,766,240 100 
 
Registered voters/turnout 
4,327,120 
40.8
  
Source: Nohlen & Stöver
  
April: Amendment to the federal law on the judiciary [ edit ] 
Choice
 
Votes
 
%
  
For 
775,885 
47.4
  
Against 
862,538 
52.6
  
Blank votes 
120,437 
–
  
Invalid votes 
3,721 
–
  
Total 1,762,581 100 
 
Registered voters/turnout 
4,327,120 
40.7
  
Source: Nohlen & Stöver
  
September: Popular initiative on phasing out nuclear power [ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
816,300 
47.1 
6 
2 
7
  
Against 
915,749 
52.9 
14 
4 
16
  
Blank votes 
21,690 
– 
– 
– 
–
  
Invalid votes 
2,539 
– 
– 
– 
–
  
Total 1,756,278 100 20 6 23 
 
Registered voters/turnout 
4,345,490 
40.4 
– 
– 
–
  
Source: Nohlen & Stöver
  
September: Popular initiative on stopping the construction of nuclear power plants [ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
946,087 
54.5 
17 
5 
19.5
  
Against 
789,219 
45.5 
3 
1 
3.5
  
Blank votes 
19,375 
– 
– 
– 
–
  
Invalid votes 
2,446 
– 
– 
– 
–
  
Total 1,757,127 100 20 6 23 
 
Registered voters/turnout 
4,345,490 
40.4 
– 
– 
–
  
Source: Nohlen & Stöver
  
September: Energy article in the federal constitution [ edit ] 
Choice
 
Popular vote
 
Cantons
  
Votes
 
%
 
Full
 
Half
 
Total
  
For 
1,214,940 
71.1 
20 
6 
23
  
Against 
493,846 
28.9 
0 
0 
0
  
Blank votes 
41,246 
– 
– 
– 
–
  
Invalid votes 
2,930 
– 
– 
– 
–
  
Total 1,752,962 100 20 6 23 
 
Registered voters/turnout 
4,345,490 
40.3 
– 
– 
–
  
Source: Nohlen & Stöver
  
September: Amendment to the federal road traffic law [ edit ] 
Choice
 
Votes
 
%
  
For 
898,958 
52.8
  
Against 
803,733 
47.2
  
Blank votes 
45,612 
–
  
Invalid votes 
2,907 
–
  
Total 1,751,210 100 
 
Registered voters/turnout 
4,345,490 
40.3
  
Source: Nohlen & Stöver