text: Assessment).396 Many good examples of support for micro and small enterprises (MSEs) are available 
  as identified in the comprehensive EU-OSHA reports on OSH in MSEs.397 
  
  Often, guidance documents show the difference between good practice in prevention and risky 
  practices, for example, the SLIC guidance on measures against exposure to respirable crystalline silica 
  at construction sites.398 There are many of these good or best practice examples in literature, but there 
  is rarely a**quantitative estimate of the occurrence of good**(or moderate)**versus poor practice**
  **before and after**the publication and promotion of such guidance documents, which would be crucial to 
  estimate the impact of guidance and tools. 
  
  Often the support of a proper implementation is done by European national, sectoral and regional 
  employers’ and workers’ associations. They contribute to supervision and implementation by 
  consultation or participation in steering committees and so on. Some of them produce specific OSH 
  information or guidance for their members, adapted to the main topics of the organisation. 399 They 
  participate in the development of national strategic approaches or OSH campaigns. In all EU Member 
  States there exist fora for social dialogue at regional, sectoral or national level (overview in OSHWiki 
  articles on OSH national systems400). At EU level more than 40 sectoral Social Dialogue Committees 
  and a cross-industry social dialogue committee is working on topics of EU-wide relevance.401 