Questão jurídica principal
Whether additional contribution years under Art. 52d AHVV must be credited before the respondent received an A/B residence permit as a seasonal worker.
Decisão extraída
No additional contribution years could be credited for the period before the B permit was issued on 1 April 1977; the respondent had no relevant Swiss residence for Art. 52d AHVV before that date.
Fundamentação extraída
For Art. 52d AHVV, only periods in which the person had the legal possibility to pay contributions or to join the insurance voluntarily count. A seasonal permit (A) did not suffice during periods outside work and stay rights. The court held that the residence concept in this context must be construed narrowly and that the respondent only became eligible from the B permit onwards.