For employers

Employers are always liable for ensuring that the work can be performed without risk of illness or accident. This means, for example, that the employer is liable for ensuring that the person who will perform a job receives adequate instruction and understands the job fully. Personnel must not only know what risks might exist but also be able to avoid risks.
The employer is always responsible, but can allocate tasks regarding the work environment. If there are several managers at various levels, the responsibility should always be considered to be yours even if it appears legally that the responsibility lies at a higher or lower level.

As a manager you must know the Swedish Work Environment Act and the work environment regulations that apply in your workplace. It is also common for managers to receive specific tasks regarding the work environment, for example, initiating safety inspections, and administering other parts of the systematic work environment procedures.

Read more on http://www.av.se/.