when this period is extended even more. The beginning of maternity leave is usually 6 weeks before expected due date, and after maternity leave, it is possible to request further parental leave, which is optional and can be performed by either parent, regardless of gender. Parental leave lasts up to four years, depending on individual preferences. Pension insurance is part of social insurance, in addition to sickness insurance and serves as a contribution to the state employment policy. It is a premium for old age retirement, disability retirement or benefits in the event of the death of the primary provider in a household. Participation in pension insurance is mandatory for economically active individuals. For those on various forms of benefits, or currently registered as a care provider, this insurance is provided by the state. The basic pension insurance provides, in time old-age pension (includes regular, proportional, early and other variants of old-age pension), disability benefits, widower's and orphan's pension. Pension insurance is applied for at the District Social Security Administration in the applicant's place of permanent residence. They can apply in person or by proxy, on the basis of a notarized power of attorney. The amount of the pension consists of two component - the basic acreage and the percentage acreage. Another form of pension is the disability pension. This is provided to individuals that are unable to participate in the workforce to the same degree as their able-bodied counterparts, due to their disability contributing to the decline of their ability to work (be it partially or entirely). There is a distinction between disability pension for individuals with first, second and third degree disability. The amount of the pension depends on the rate of decline of the person's ability to work, with the categories being divided between the first degree (a decrease of 35-49%), the second degree (a decrease of 50-69%), and the third degree (a decrease of 70% and above). Furthermore, there is a so-called widow's / widower's pension. Provided to widowed individuals from the Czech pension system, its aim is to compensate households for losing income that they would in this situation be lacking. The widowed individual is entitled to a pension from a deceased person who has received an old-age or disability pension or has fulfilled the statutory condition on the required insurance period at the date of death. The amount of the assessment is 10% of