Maybe you should do some better research then:
Below is a list of possible block-out types and what they would look like if they apply to a specific date:
“Block-out: Main Entrance Pass (Spouse & Guest)” on the calendar means that the Spouse cannot use their Spouse Pass and that neither the Spouse nor the Cast Member can admit Guests. “Block-out – Employee Self Admission (Employee Only)” means that Cast Members and Employees normally eligible for self-admission cannot admit themselves into the parks.
If only the “…Spouse & Guest…” one is listed, that means that an eligible Cast Member can use their ID to admit themselves at Disneyland or use their Main Entrance Pass to admit themselves at Walt Disney World. These are listed separately because there is a possibility of multiple combinations of block-out dates and one may not always be listed with the other. The wording is listed as it is because Cast Members use different media for self-admission at different Resorts. Walt Disney World uses the Main Entrance Pass for self-admission while Disneyland uses the Company ID.
A newer media type is the one for Temporary/Recurring Cast Members and Operating Participants, as indicated by “Block-out: One-Day Park Hopper® Guest Ticket”. To use this ticket, the Cast Member/Employee must first use their self-admission media, which will then unlock the One-Day Park Hopper® Guest Ticket(s) to admit friends or family.
A few Resorts may use the “…Until 4PM” block-out type, which means that the media type is only blocked for a part of the day and after 4PM it may be used for admission. Unless otherwise specified as “…Until 4PM,” all block-out dates are a full business date.
On the rare occasion that Cast Member complimentary tickets are blocked, which may occur for special events, the block-out will be listed as “Block-out: Cast Distribution Comp Tickets”. Another rare occasion would be a complete Park closure and that would be listed as “Block-out Park closure”.
Each different type of block-out will be listed as a separate item on each date they occur and if that type is not listed below the date, it is not blocked and therefore able to be used.