Mandatory provisions therefore tend to have binding effect on both individual and collective Contracting Parties. An exception in favour of collective agreements is the concept of a law on three-quarters of the mandate: the legal provisions from which a collective agreement, but not by individual agreement, can be lowered. The concept of a three-quarters mandatory law creates the possibility of adapting employment conditions to the needs of a particular sector while ensuring the protection of individual workers (provided that trade unions effectively protect workers). The question of whether a provision is mandatory for three-quarters is clear from the wording of the provision itself. Employment contracts must contain certain clauses. Additional clauses must be agreed that meet the needs of the organization and the employee. Your employment contract cannot prevent you from working for other employers unless there are real reasons to do so based on reasonable grounds, and these reasons are set out in the agreement. The real reasons may be protecting your boss`s business knowledge or business reputation, or preventing an unmanageable conflict of interest. The extent to which workers organize into trade unions varies considerably between different sectors of the economy, as well as between types of employers.  Traditionally, high percentages of union members have been found in government and education, transportation, heavy industry, and construction, while most service sectors have low percentages. Workers with regular jobs are more likely to organize than part-time, on-call or temporary workers.
Workers and administrative staff more than so-called knowledge workers, the latter often being sought-after, well-paid and relatively independent. As in other European countries, accession rates in the Netherlands are low and declining. Currently, 26% of the general workforce is unionized, compared to 56% in air and sea transport and 11% in ICT.  Unlike this small number of member organizations, 85% of workers are subject to collective agreements concluded by these unions. Recently, the Liberal Party has drawn attention to this phenomenon and has again raised the issues of the representativeness of unions and the almost automatic renewal of collective agreements.  In his response, the Minister of Social Affairs pointed out that, despite the low membership rate, Dutch trade unions enjoy broad support among the population. Non-members also overwhelmingly support the idea that unions perform a function that is in the interest of society at large.  This perception of trade unions as co-guardians of the general interest was very inherent in the post-war industrial relations system and is still part of the Dutch polder model, although it can now be so in the absence of a better alternative.  Meanwhile, the high proportion of freeriders leaves unions with few members and little funding.
In response, there is a tendency to improve the service element of union membership.  Unions offer legal advice, insurance, etc. to attract more workers to membership.  However, it is still unusual to request special benefits for union members in collective agreements. The employer can either make the job offer or contract conditional on you receiving a satisfactory criminal exam, or wait until the exam is complete before deciding to make you an offer of employment. Read about what to expect when you are asked to sign a contract, the types of agreements that cover employees in the workplace, and the pros and cons of employment contracts. . Home Care Agreement (CAO Thuiszorg) 2000/2001 Art.
3, AI nr. 9310, Bijv.Stcrt. 20.01.2000, No 14. Under Netherlands law, a distinction must be drawn between a formal concept and a substantive concept of collective agreement. The substantive concept of the collective agreement is very broad. .