Using evidence-based instructional practices in reading and writing literacy for public elementary students.

Corrected a grammatical error in the header, changing 'Substitute House Bill' to 'Engrossed Substitute House Bill' to indicate the bill has passed both houses.

Removed the word 'those' from a sentence regarding state learning standards to improve grammatical flow.

Removed redundant text referencing specific RCW chapters for charter schools and state-tribal schools, as the literacy requirements now implicitly apply to them under the main section.

Fixed a formatting error where the grade level was duplicated as 'fourth grade four' to simply 'grade four'.

Replaced the mandate for immediate implementation of a specific 'structured literacy' model with a requirement that future curriculum updates must be evidence-aligned and part of a comprehensive literacy program.

Removed the requirement for districts to fully implement the new literacy program by the 2027-28 school year.

Extended the start date for mandatory continuing education for teachers with literacy endorsements from 2028 to 2030.

Updated statistical findings in the bill to reflect reading proficiency rates from the 2023-24 school year instead of 2022-23.

Removed the repeal of several existing RCW sections related to reading grants, effective reading programs, and professional development partnerships.

Changed the specific terminology from 'structured literacy' to broader terms like 'evidence-informed instructional practices' and 'comprehensive literacy program'.