Relating to employment; and prescribing an effective date.

Changed the primary subject from 'worker leasing company' to 'professional employer organization' (PEO) throughout the document.

Added new definitions for 'client employer', 'client worker', 'PEO relationship', and 'covered employee' to clarify the new PEO framework.

Added a specific definition distinguishing PEOs from temporary staffing agencies and payroll processors by requiring assumed employer responsibilities.

Updated the digest and explanatory text to reflect that PEOs can elect how to classify workers for unemployment insurance purposes.

Changed the bill status from 'A-Engrossed' to 'B-Engrossed' and updated the ordering authority from House to Senate with additional Senate amendments.

Removed provisions requiring the Employment Department to reimburse worker leasing companies for employer contributions when refunds are due.

Removed the rule that worker leasing companies are not responsible for paying employer contributions for client employers with fewer than 25 employees.

Added new definition of 'base year' as the first four of the last five completed calendar quarters preceding the benefit year.

Modified the 'benefit year' definition to specify a 52-week period starting from the first week of an initial valid claim, with a 53-week exception for overlapping claims.

Added new definitions for 'client employer', 'furnished employee', 'educational institution', 'hospital', 'institution of higher education', 'nonprofit employing unit', and 'state'.

Removed definitions related to 'family and medical leave insurance benefits', 'eligible employee', and 'domestic partnership' that were specific to ORS 657B.